PRIME Files The first size listed is the downloaded file size and the second size listed is the size on the calculator.

There are 755 files totaling 933939KB in this category.

 1D Kinematics Solver 1.00   (details) Prime ENG   385KB/64KB Educational App allowing one dimensional kinematics problems to be entered, solved using the standard kinematics formulae, and visualized as vertical or horizontal motion problems via a simple graphical representation. Includes PDF documentation. By Steve Wright. 2020/09/30

 2048   (details) Prime ENG   3KB/7KB The game of 2048. Keyboard input only, no touch screen support. By Francois Lanciault. 2014/10/19

 2048 1.0   (details) Prime ENG   9KB/15KB Prime port of Gabriele Cirulli's popular game 2048, re-written in Python. By José Felten. 2021/11/24

 2048 1.3   (details) Prime ENG   201KB/20KB Slide tiles to combine matching tiles into single tiles with twice the value. By Tony Gallo. 2022/02/27

 2D Covariance, Ellipse Geodesy   (details) Prime ENG   5KB/15KB Calculates 2D Covariance matrix and ellipse with all elements. Author unknown. 2021/12/31

 3D Drawing   (details) Prime   3KB/8KB Lets you draw pixels in the desired colors, using the arrows and SYMB and HELP, and selecting the color with ESC, and then shows it in 3D. By Bing Guo. 2018/05/17

 3D Parametric Function Plotting 1.0   (details) Prime ENG   173KB/7KB Plots a colored 3-dimensional parametric equation on an HP Prime of the form z=(t,u) where t and u are angular parameters in degrees, generally varying from zero to 360 degrees. Your Prime must be set to Degrees mode in both CAS and Home. The program will also ask for the number of slices in t and u, I generally use 40 for both. The viewing angle for the sample plot is 5 degrees for the x-axis and 25 degrees for the z-axis. There are sample functions for a toroid (doughnut), sphere, orbital (modulated sphere) and spirals. The program is based on an old Byte magazine article discussing the mathematical principles behind 3D plotting. By Gerardo V. Lozada. 2015/07/26

 3D Parametric Plotter 1.0   (details) Prime ENG   25KB/12KB Allows you to plot 3D parametric functions and orbit your view around them. For controls, press the "Help" key.x By Zachary Traul. 2020/12/29

 3D XYZ Function Plotter 1.1   (details) Prime ENG   1KB/3KB Plots 3-dimensional functions of the form f(X,Y), such as f(X,Y):=(-(X^2+Y^2));. By Gerardo V. Lozada. 2014/10/18

 A Fluorescent Light Experiement   (details) Prime ENG   303KB Experiment showing how the Prime can be used with the HP StreamSmart 410 and a light sensor to measure the frequency of a fluorescent light. Unfortunately it incorrectly claims that electricity in the US runs at 120 Hz; this misunderstands that AC has two peaks per period (in opposite directions), both of which cause the light to get brighter. Also has useful information on how to export data from Excel to the Prime. By Hewlett-Packard. 2017/05/02

 AASHTO T-99 T-180 1.0   (details) Prime ESP   4KB/13KB Program that does calculations related to AASHTO T 99 Standard Proctor and AASHTO T 180 Modified Proctor. By Jose Edgar Campos Cespedes. 2021/12/31

 AASHTO-93 1.0   (details) Prime ESP   9KB/58KB Calculates the structural number with the AASHTO equation for the pavement course. By Dolfer Guevara Ramires. 2019/12/29

 ABM Quick Basic Electronic Equations   (details) Prime ENG   5KB/21KB ABM presents 2 menus with basic equations (for example, 2 Zs in parallel, Fo resonance, XC, XL, Ohms Law&Power, D<>Y converter, Parallel R,L,C, etc.). The program uses menus that are softkey driven. By Bernard Michaud. 2016/08/06

 ACBasicE 1.2   (details) Prime ENG   1886KB/101KB Series Circuit Analysis and Parallel Circuit Analysis extracted from ACDC2 but not using matrix as input device and more user friendly. It includes some extra sections like RC and RL transients. Includes comprehensive PDF documentation. By Bernard Michaud. 2016/08/06

 Acceleration   (details) Prime ENG   3KB/18KB Given any three of the five variables in the acceleration equation, the other two variables are calculated. As with all of the author's spreadsheets, the blue text cells are the input data and the red text cells are the calculated output data. By Jim B. Williams. 2020/04/12

 ACDC 1.0   (details) Prime ENG   162KB/37KB Aimed at Basic Electronics (Series Circuits, Parallel Circuits, Delta Wye Conversion, Wheatstone Bridge, and Thevenin Bridge). The program uses a matrix approach to input the data. By Bernard Michaud. 2016/08/02

 Acides   (details) Prime FRA   1KB/2KB Lists various acids, giving you the name based on the chemical formula and vice versa. By Mickaël Nicotera. 2017/04/27

 Advanced Boolean Functions   (details) Prime ENG   44KB/6KB A set of functions for doing advanced Boolean operations, beyond what the calculator has built-in: NAND, NOR, XNOR, and IMPL. By Eddie W. Shore. 2020/04/12

 Advanced Lease Payments   (details) Prime ENG   2KB/2KB Calculates the monthly payment of lease several payments are paid simultaneously at the beginning of the lease. Requires firmware 13441 or higher. By Eddie W. Shore. 2018/03/18

 Advanced Payments 2.0   (details) Prime ENG   13KB/9-19KB Calculates loans with advanced payments (for example, a 60 month loan with 3 advance payments), giving the monthly payment (less the advance) and calculating the monthly and annual yield (rate). Also calculates the payment of a loan with residual value (for payment and yield, with the IRR method). By Salvo Micciché (salvomic). 2016/08/03

 Air Hockey   (details) Prime ENG   3KB/9KB Simulates an air hockey table By Alex GT. 2017/02/16

 AirportNav 2.0   (details) Prime ENG   3KB/17KB Spreadsheet that illustrates the CHOOSE command. The user 'Chooses' both the departing and the arriving airports and inputs the wind conditions. The spreadsheet then calculates the navigation data needed for the flight. The airports' longitude and latitude data are now stored in the spreadsheet itself rather than in List1 and List2. NOTE: The calculator must be in the Degrees mode to operate property. By Jim B. Williams. 2020/04/11

 Airy   (details) Prime ENG   16KB/5KB Calculates the Airy functions, Ai and Bi. Author unknown. 2017/06/01

 Algebraic to RPN   (details) Prime ENG   3KB/3KB Takes an algebraic expression and converts it to an RPN string. The program itself may not be all that useful but it hopefully provides to those interested in programming expressions a bit of insight into how expressions are built. By Han Duong (HPSolo). 2017/02/25

 AlmostBlockOut 1.05   (details) Prime ENG   18KB/92KB Clone of the game Almost BlockOut, which is a kind of 3D Tetris game. Author unknown. 2017/02/11

 Amort 1.0   (details) Prime FRA   8KB/31KB Calculates an amortization schedule for loans, given the interest rate, the amount borrowed, and the duration of the loan. By Mickaël Nicotera. 2017/04/27

 Angry Birds   (details) Prime ENG   2KB/5KB Inspired by the Angry Birds game for other mobile platforms. By Mickaël Nicotera. 2013/12/22

 Angular Distance Between Stars   (details) Prime ENG   2KB/2KB Given the right ascension (α) and declination (δ) of two stars of the same epoch (J2000.0 is the most current), calculates the distance between the stars. By Eddie W. Shore. 2017/06/12

 ANOVA   (details) Prime ENG   11KB/5-47KB ANOVA functions, with separate functions for one-way, two-way, and regression analysis. By Salvo Micciché (salvomic). 2015/08/20

 Any Friction Factor 7.0   (details) Prime ENG POR   2KB/3KB Program for the piping area, designed to calculate the friction factor in any flow regime (laminar, turbulent, transition). For laminar flow with Re<#00 the program uses the friction factor equation for laminar regime(fd/Re). For flow with Re> 2300 the program uses the Colebrook-White equation (1939) which covers the entire transitional and turbulent regime. By Antonio Ricardo Bozolla. 2021/09/12

 APR 2.0   (details) Prime ENG   4KB/4KB Calculates the fees for a mortgage as percentile "points" %, fix amount or both. By Salvo Micciché (salvomic). 2016/08/03

 APSI Webinar: Programming in HP PPL   (details) Prime ENG   377KB A 14-page PDF introducing HP PPL programming on the Prime, including examples with the Sierpinski Triangle and Sicherman Dice. By Hewlett-Packard. 2017/05/02

 Area by Quadratic Splines   (details) Prime ENG   3KB/3KB Calculates the area under the curve described by the set of points (x_n, y_n). The points are connected, in groups of three, by quadratic splines. Thus, points (x1, y1), (x2, y2), and (x3, y3) are connected by a quadratic spline, (x3, y3), (x4, y4), (x5, y5) are connected by another quadratic spline, and so on. By Eddie W. Shore. 2017/12/17

 Area Calc   (details) Prime POR   43KB/12KB Program that demonstrates using the MENU touch screen function to calculate the area of various polygons -- square, rectangle, circle, triangle, and diamond. By João Leonardo Rozsas. 2016/08/03

 Areas and Volumes 2.0   (details) Prime ENG FRA   2KB/2KB Formulas for calculating areas and volumes. By Mickaël Nicotera and Brad Woollon. 2019/03/11

 Armaduras Isostaticas 1.5   (details) Prime ESP   1439KB/100KB Calculates structural analysis of trusses by the matrix method. By Hebert Poma Vidal. 2016/08/02

 aslist   (details) Prime ENG   4KB/4KB A supplementary function aslist that lets you store RPN listings in Notes. This way RPN program listings can be copied, pasted and run, without needing to use the Keystroke Programming Simulator or a list editor. By Andy Bulka. 2018/05/01

 Assigned Variables and Batch Purge for CAS   (details) Prime ENG   23KB/7KB Three CAS utility functions. Two of them, varslist1() and varslist2(), identify assigned variables, showing type and value. The third can be used to batch purge single-character lower-case variables. Author unknown. 2019/10/25

 Asteroid 1.2.64   (details) Prime ENG   35KB/3KB Spaceship game where you must dodge asteroids and lasers. By Mickaël Nicotera. 2013/10/05

 Astro Lab 4 (10077+)   (details) Prime ENG   726KB/1-90KB Astronomy program with many built-in features. For firmware 10077 or higher. By Marcel Pelletier. 2016/08/03

 At The Races   (details) Prime ENG   32KB/5KB Simulates a race between seven racers. Betting is not included. By Eddie W. Shore. 2018/06/03

 Atmospheric Air Properties 1.0   (details) Prime ENG ESP   82KB/5KB Determines some physical and thermodynamic properties of air at different altitudes. Uses the international units system (SI) and considers dry air. Altitude range permitted is from -5,000 to 20,000 meters; in this range air is considered ideal gas. By Jesús Alberto Tamez García. 2018/09/25

 AXL   (details) Prime ENG   1KB/1KB An attempt to duplicate the functionality of the AXL command in the 50g. By Hege Gabert. 2013/10/05

 Azimute e Distância R01   (details) Prime POR   2KB/4KB Based on 2-point coordinates, calculates azimuth and distance. By Pedro Goulart. 2015/07/26

 Azimuth/Bearing Conversions   (details) Prime ENG   48KB/4KB Convert angles between two measuring systems that are commonly used by civil engineers and navigators -- Azimuth to Bearing and Bearing to Azimuth. Uses an unusual approach: the use of the arcsine, sine, and cosine functions. These functions are used because on scientific calculators, the trigonometric functions return answers in specific ranges. By Eddie W. Shore. 2019/05/27

 Backgrounds   (details) Prime ENG   3114KB/1000+KB View high resolution background images, scrolling through the image with the touchscreen or the cursor keys. Author unknown. 2014/02/01

 Baillie-PSW Primality Test Variant 1.1   (details) Prime ENG   155KB/6KB The Baillie-BPSW Primality Test is a probabilistic algorithm to determine the primality of a given integer up to several hundred decimal digits. This implementation is a fast efficient variant of that algorithm that has no known pseudoprimes. By Jim Cullen. 2021/04/10

 Bang 1.2   (details) Prime ENG   16KB/15-50KB A game for 1 or 2 players where one side must fire bullets at the other side, and the other side must avoid being hit by them. By Chong Wang. 2017/06/13

 Base 10 - Base 12 Conversions   (details) Prime ENG   3KB/4KB Converts between Base 10 and Base 12. By Eddie W. Shore. 2017/02/11

 Base Conversion   (details) Prime ENG   3KB/2KB This program will convert between any base, with the user being prompted for the required output base. Numbers without # are treated as decimal. Numbers with # but without explicit type are treated as per system setting for integers. By Steve Tuc. 2016/08/06

 Base Conversion   (details) Prime ENG   3KB/8KB Performs base conversions, including fractional parts. By Han Duong (HPSolo). 2017/02/11

 Base48 1.1   (details) Prime ENG   276KB/47KB Implements base functions in an RPL mode inspired by the 48GX. Includes an environment with a stack, softkeys and similar function set. By Didier Lachieze. 2018/09/10

 BASEDEC/DECBASE   (details) Prime ENG   4KB/6KB A pair of programs which convert numbers back and forth between decimal and any arbitrary base up to base 36. By Eddie W. Shore. 2019/12/29

 Basic Planetary Data   (details) Prime ENG   5KB/6KB Retrieves data about our solar system planets, including our dwarf planet, Pluto, presenting you with a choose menu which will present a screen of all the data for a planet. It also has a routine to pull out a specific data point for calculations. Data available are name, radius (km), mass (kg), gravity (m/s^2), density (g/cm^3), axial tilt (°), period (days), and number of moons. By Eddie W. Shore. 2017/02/11

 Bejeweled 1.3   (details) Prime ENG   9KB/29KB Clone of Bejeweled, where you must swap colored blocks in order to get three in a row of the same color to eliminate them. By Chong Wang. 2017/02/11

 Benchmarker   (details) Prime ENG   97KB/41KB Benchmarks how fast your Prime is (or the computer/phone simulating it). For reference, a revision A or C Prime should get 23.2 seconds, 25.5 seconds, and 245.4 seconds, and a revision D (G2) Prime should get 7.7 seconds, 8.5 seconds, and 87.4 seconds. The virtual calculator on a 2015-vintage computer should get 0.6 seconds, 0.7 seconds, and 4.1 seconds. By GRS Banks. 2018/09/15

 Benchmarks   (details) Prime ENG   12KB/23KB A simple harness for running benchmarks, along with an implementation of the Savage benchmark, in PPL and CAS, and an implementation of the original Whetstone benchmark algorithm in PPL. By Stephen Lewkowicz (G1CMZ). 2017/12/06

 Bernoulli Numbers 1.0   (details) Prime ENG   16KB/3KB Calculates the Bernoulli numbers and the sum of powers polynomial. By Norberto Presser. 2020/12/29

 Bernoulli's Differential Equation 1.4   (details) Prime ENG   2KB/3KB Finds the solution to Bernoulli's Differential Equation given as: y' + g(x)*y =(x)*y^n, calculates the constant of integration C for any initial condition y(x0) = 0, if desired, and depicts the plot of the curve of y(x). By Claus Martin Dachselt. 2018/09/09

 Bessel Function Second Kind   (details) Prime ENG   7KB/21KB Program to calculate the second kind Bessel function of integer order N, for any REAL X, using the function BESSY(N,X). By Tom Lake. 2017/10/31

 Bessell   (details) Prime ENG   7KB/1KB Calculates the Bessel function of the first kind. Two different approaches are shown. By Eddie W. Shore and others. 2016/08/06

 Best Regression Fit   (details) Prime ENG   5KB/4-5KB Compares a set of regressions to determine a best fit, simulating a feature from the 48 and 49/50 series calculators. It compares the correlations of the linear, logarithmic, exponential, and power regression models. Includes a separate version that adds inverse, simple logistic, simple quadratic, and square root. By Eddie W. Shore. 2017/11/05

 BESTFIT3   (details) Prime ENG   3KB/5KB Inspired by Best Regression Fit, this calculates the best fit, returning the best Rsqr value, the power of best Y transformation (0 means ln(y)), the power of best X transformation (0 means ln(x)), the best slope, the best intercept, the minimum X value, the maximum X value, the minimum Y value, and the maximum Y value. By Namir Shammas. 2017/12/28

 Beta Release Notes 2.1.14541 (2021 04 13)   (details) Prime ENG   12KB Release notes for the beta software release, including a list of changes and also updated documentation describing what is new in PPL. By Hewlett-Packard. 2021/04/13

 Bézier Curves   (details) Prime ENG   6KB/11KB A program for generating and drawing Bézier curves By Stephen Lewkowicz (G1CMZ). 2018/01/24

 Binary Conversions   (details) Prime ENG   4KB/2-5KB Two conversion programs, one which takes a real number, x, and decomposes it to the form of x = 2 * (1 + n)^p, and the other which converts any real number in base 10 to base 2, including non-integers and negative numbers, and the result is displayed as a string. By Eddie W. Shore. 2020/09/30

 Bisection 1.0.1   (details) Prime ENG   585KB/1KB There are numerous algorithms that calculate the roots of single-variable nonlinear functions. The most popular of such algorithms is Newton's method. The slowest and simplest root seeking algorithm is the Bisection method. This method has the user select an interval that contains the sought root. The method iteratively shrinks the root-bracketing interval to zoom in on the sought root. By Namir Shammas. 2014/01/11

 Black Hole Characteristics – Hawking Radiation   (details) Prime ENG   4KB/3KB Given the mass (either in kg or solar masses), this program can estimate these black hole characteristics: Swartzchild radius, life time left as the black hole slowly radiates, average temperature of the black hole, surface area of the black hole, and surface gravity of the black hole. By Eddie W. Shore. 2018/01/07

 Blackjack 1.0   (details) Prime ENG   12KB/18KB A simple Blackjack game. Nothing fancy. No insurance, no splitting, etc.; it was just for learning programming. Author unknown. 2018/10/14

 BLAS 0.1   (details) Prime ENG   13KB/35KB Basic Linear Algebra Subprograms, which implements most of the BLAS Level 1 functions in single precision. By Stephen Lewkowicz (G1CMZ). 2019/09/11

 Blotch   (details) Prime ENG   4KB/4KB Draws square blotches with random colors. By Eddie W. Shore. 2014/10/19

 Bode Magnitude Plot   (details) Prime ENG   3KB/3KB Plots a handmade Bode Plot for any of the following forms: (I) H(s) = K * (s/A + 1)/(s/B + 1), (II) H(s) = K * (s/A + 1), and (III) H(s) = K * 1/(s/B + 1). By Eddie W. Shore. 2017/04/15

 Bode Plot   (details) Prime ENG   66KB/93KB Does Bode plots for Bode magnitude, Bode phase, root locus, step response, ramp response, Nyquist plot, and delay response. Author unknown. 2017/02/11

 Bode/Nyquist   (details) Prime ENG   4KB/8KB Bode/Nyquist plotter. By Mickaël Nicotera. 2017/04/27

 Bolt Pattern   (details) Prime ENG   3KB/1KB Calculates a bolt pattern given X (center, X coordinate), Y (center, Y coordinate), N (number of bolts), and D (diameter of the circle). No angle of rotation is assumed. By Eddie W. Shore. 2015/08/20

 Bonds   (details) Prime ENG   5KB/7KB Calculates price and yield of a Bond. The program treat bonds with coupons paid annually or semi-annually (or other ends) and also "zero bonds", both for "actual year" and "financial year" (30/360). By Salvo Micciché (salvomic). 2015/08/20

 Boolean   (details) Prime   6KB/23KB Builds truth tables for Boolean expressions. In Russian. By Vlad A.B. (Vlad_AB). 2017/02/15

 Breakout   (details) Prime ENG   11KB/47KB Bounce the ball off the bricks to break them all. By Egan Ford (datajerk). 2014/01/09

 Bricks 0.3   (details) Prime ENG   10KB/36KB Tetris clone. By Felis Sylvestris. 2015/08/15

 Building a List of Templates   (details) Prime ENG   71KB/2KB Shows how, using a custom Templates user key, to quickly access functions that would take additional keystrokes and with the App specific functions, deal with dynamic menus. Also includes a modified version that works with later firmware versions and allows the selection to be cancelled with Esc. By Eddie W. Shore. 2018/05/28

 Calcul formel et Mathématiques avec la HP Prime   (details) Prime FRA   1218KB Comprehensive book in French explaining how to do math on the Prime, with a focus on the CAS. In PDF format. By Renée De Graeve. 2018/01/24

 Calculate Molar Mass of Compound 1.0   (details) Prime ENG   201KB/7KB Simple command-line program to determine the molar mass (formula mass, molecular weight) of a compound. It is a reworking of %8779%. By Aaron Kennedy and Erik Swanson. 2021/12/31

 Calculations with 3-Dimensional Vectors   (details) Prime ENG   6KB/2-12KB A series of programs for working with three dimensional vectors, including RECT2SPH (rectangular to Spherical Coordinates), SPH2RECT (spherical Coordinates to Rectangular Coordinates), LIN3DIST (linear distance between coordinates), SPH3DIST (spherical distance between coordinates), VANGLE (angle between two coordinates), and ROT3X, ROT3Y, and ROT3Z (which rotate the three-dimensional vector [x, y, z] with respect to the x-axis (ax), respect to the y-axis (ay), and respect to the z-axis (az), respectively). By Eddie W. Shore. 2017/02/11

 Cálculo de Área, Volumen, Inercia, Centroides 1.0   (details) Prime ESP   5KB/62KB Calculates the area, volume, moment of inertia, and centroid, with a list of figures to choose from. By Arnoldo José París Monagas. 2017/12/28

 Calendar Functions 2.0   (details) Prime ENG   7KB/16KB A variety of functions for working with times and dates, including determining whether a date is valid, if a year is leap year, pulling out the century, year, month, day, and week number, Julian date conversions, Easter date calculation, converting between UTC and local time, and more. By Josep Mollera (JMB). 2018/10/13

 Capacidade de Suporte do Solo R01   (details) Prime POR   2KB/13KB Performs soil calculations by the Terzagui and Beer methods. Calculates the General Method break and soil site for isolated rectangular, square and circular foundations. By Pedro Goulart. 2016/08/02

 Car Payment and Affordability 1.1   (details) Prime ENG   3KB/4KB Two programs to tackle common financial questions of purchasing automobiles, or other equipment that might be financed. CARPMT calculates what would be the monthly payment, while CARAFFORD calculates the sticker price that the buyer can afford. By Eddie W. Shore. 2018/03/14

 Card Sharks Odds   (details) Prime ENG   3KB/2KB The game show Card Sharks may have long been off-air except for reruns on GSN or BUZZR (or even finding videos on YouTube), the game show is still popular. It is a simple game involving a standard deck of 52 cards. The object is to predict whether the next card is higher in rank or lower in rank than the preceding card. In Card Sharks, aces always count as high. Along with aces, twos are very desirable, while eights are the worst cards in the deck. The program CSODDS tracks the odds of whether the next card is higher or lower. CSODDS assumes a 52 card deck (no jokers). By Eddie W. Shore. 2016/08/04

 Carmichael Numbers   (details) Prime ENG   4KB/1-2KB Tests whether an integer n qualifies as a Carmichael number based on the Korselt’s Criterion: 1. n is a positive, composite integer. That is, n can be factored into a multiplication of prime numbers. 2. n is square-free. 3. For each prime factor p dividing n (not 1 or n), the following is true: (p-1) divides (n-1) evenly (without fraction). By Eddie W. Shore and others. 2020/05/03

 CarPower   (details) Prime ENG   3KB/1KB Takes power in horsepower (hp), mass in pounds (lb), initial velocity (mph), and time to evaluate (seconds). Returns zip (numerical value only (ft/s^1.5)), acceleration in miles per hour per second, velocity in miles per hour, and position in feet. By Eddie W. Shore. 2014/10/19

 Cash Flow 2.0   (details) Prime ENG   15KB/8-27KB Calculate cash flow operations (IRR, MIRR, NPV). The program is presented in two versions: the first gives three routines to calculate (Net Present Value, Internal Rate of Return and Modified Internal Rate of Return, like that in the HP 12C); the second has a menu-based interface with only one command, Cash_Flow, that runs the same routines internally. By Salvo Micciché (salvomic). 2016/08/03

 Casio-Style ENG Button   (details) Prime ENG   6KB/5-8KB Simulates the ENG button from Casio calculators, which displays numbers in engineering format and converts the exponent (for example, xxxE3 to xxxE6, xxxE6 to xxxE9, or reverse). Unknown original author and Salvo Micciché (salvomic). 2017/12/17

 CC3D   (details) Prime ENG   57KB/18KB Six short programs to convert coordinates in three dimensions, among the three coordinate systems: rectangular, cylindrical and spherical. Author unknown. 2017/02/11

 Center of Mass   (details) Prime ENG   3KB/1KB Calculates the center of mass of the matrix M, where M represents the body. The entries of M represents an array of molecules, each with assigned weights. It is possible that the center of mass is located outside of the body. If gravity affects the particles equally, then the center of mass & center of gravity are identical. By Eddie W. Shore. 2015/08/20

 CFD Wall Spacing Calculator 1.0   (details) Prime ENG   2KB/3KB Reads in velocity, altitude, and length then exports Reynolds number and wall spacing for a yplus of 1. Based on log law of the wall. By Nicholas Peters. 2021/09/12

 Chaos   (details) Prime ENG   1KB/1KB Plots a chaos plot. Author unknown. 2013/12/22

 ChemKit 1.0   (details) Prime ESP   783KB/18KB Allows you to solve typical problems of the Quantitative Chemical Analysis course: activity coefficients, acid-base equilibria, acid-base titrations and EDTA titrations. By Jhonatan Peretz. 2020/04/11

 ChessMaster 1.0   (details) Prime ENG FRA   216KB/26KB Classical 2 player chess game, allowing you to play using the touch screen. This version does not include check-mate or draw detection, nor does it check the legality of moves. By Loïc Perrin. 2016/08/02

 Chi Square   (details) Prime ENG   3KB/6KB Calculates the chi2 test having only the variance s^2 and σ^2. By Salvo Micciché (salvomic). 2015/08/20

 Chinese Chess 1.1   (details) Prime ENG   6KB/12KB Two-player implementation of Chinese chess. By Chong Wang. 2017/06/12

 Chinese Klotski - NumVersion 2.0   (details) Prime ENG   6KB/6KB You have 15 numbered squares in a grid, and you must slide them around to put them in order. This update enables randomly generated color styles, each time opened, colors will be different from the former using RANDINT. By Xinyang He and Vlad A.B. (Vlad_AB). 2022/07/31

 Chip8 Sample   (details) Prime ENG   23KB/22-29KB CHIP-8 is a very old simple language/virtual machine with only 4 KB of memory. This emulates several old CHIP ROMs: Pong, Space Invaders, and Tetris. By Erwin Ried. 2014/02/01

 CHOOSE_R 1.0   (details) Prime ENG   18KB/33KB Alternative to CHOOSE command. Touch scroll-able with long lists, optional 'Delete' feature can be used to remove items from the choose list. Includes two sample use cases. Responds to calculator Color Theme settings. By Jacob Wall. 2019/12/31

 Circle Arc Parameters   (details) Prime ENG   3KB/15KB Give any two of the seven parameters associated with circles and chords, the other five parameters are calculated. Column A gives the seven variables definitions. Columns B thru H hole one of the variables each. As with all of the author's spreadsheets, the blue text cells are the data input cells and the red text cells are the calculated output cells. By Jim B. Williams. 2020/01/16

 Circle, Secant, Tangent   (details) Prime ENG   95KB/8KB Being given a circle C described by its center (xM,yM) and radius r in combination with a point P0(x0,y0) outside, Pc(xc,yc) inside or a secant defined by f(x), this CAS-program finds characteristic items like tangents T1,T2, tangential points P1, P2, chord between P1 and P2 and some more quantities. By Claus Martin Dachselt. 2019/02/11

 Circular Shift   (details) Prime ENG   2KB/1KB Does circular shifts of lists and binary integers. Author unknown. 2015/08/20

 Circulo de Mohr 2D 1.1   (details) Prime ESP   9KB/10KB In two dimensions, determines the maximum and minimum tension, from two measurements of the normal and tangential tension on two right angles. By Hebert Poma Vidal. 2017/02/10

 CLPX   (details) Prime FRA   1KB/1KB Does complex number calculations. By Mickaël Nicotera. 2017/04/27

 Cluster Analysis   (details) Prime ENG   6KB/10KB Uses K-Means-method to generate clusters for cluster analysis. Uses Euclidian distances and centroid method. Input is a data matrix in matrix M3, whereas the rows are the elements and the columns are the variables. If you have the data matrix on your computer (e.g. in Excel) you can copy it to the spreadsheet application in the Prime and from there to the matrix using the connectivity software. By Raimund Wildner. 2019/12/29

 CNV   (details) Prime ENG   6KB/4-6KB A function CNV(X) to convert between units where X can be a real (18) or a unit (18_inch). Distance, Volume, and Weight have been implemented. Works under Home and CAS. By Tom Niemann (epp) and others. 2017/08/12

 Code Editor 1.4   (details) Prime ENG   24KB/69KB A new code editor, with line numbers, search, and syntax highlighting. By Chong Wang and Frank Plate. 2019/12/29

 Code Viewer 2.1 Beta   (details) Prime ENG   5KB/18KB A code viewer, showing the code for your installed programs with syntax highlighting and line numbers. By Chong Wang. 2017/02/11

 Codes touches   (details) Prime   1KB/1KB Programmer's utility to determine key codes. By Mickaël Nicotera. 2013/10/05

 Colebrook-White Fricción 1.1   (details) Prime ESP   33KB/90KB Calculates friction using the Colebrook-White equation using the Newton Raphson method essential for fluid course I and II, showing the table of iterations. By Hebert Poma Vidal. 2016/08/02

 Collection of Functions   (details) Prime ENG   3KB/5KB Contains 13 historical, archaic, and unusual functions. They are: Versine (VERS(X); 1 – cos x), Coversine (COVERS(X); 1 – sin x), Haversine (HAV(X); sin(x/2)^2), Normalized Sampling (NSINC(X); sin(π * x)/(π * x)), Exsecant (EXSEC(X); sec x - 1), Gundermannian (GD(X); atan(sinh x)), Inverse Gundermannian (INVGD(X); asinh(tan x)), Dilogarithm (DILN(X); ∫ (ln t / (t – 1) dt, 1, x)), Exponential Polynomial (EPOLY(N, X); Σ(x^j / j!, j, 0, n)), Hypotenuse of a Right Triangle (HYPER(A,B); √(a^2 + b^2)), Langevin Function (LANGEVIN(X); 1/tanh x – 1/x), General Mean Function (GENMEAN(N,A,B), N = 1, arithmetic mean, N = 2, root mean square, N = -1, harmonic mean, (a^n + b^n) / 2)^(1/n)), and Logarithmic Integral (Li(X); Ei(LN(x))). By Eddie W. Shore. 2018/02/01

 Color Demonstration   (details) Prime ENG   23KB/4KB Lets you cycle through colors by changing the red, green, and blue values. By Eddie W. Shore. 2018/05/17

 Color Generator   (details) Prime ENG   2KB/3KB Allows you to enter numbers (0 to 255) for each R, G and B and displays the corresponding color over the screen. For example, Red=255, Green=255, Blue=0 will color your screen yellow. By Bernard Michaud. 2016/08/06

 ColorClock 1.0   (details) Prime ENG   5KB/4KB Transforms the current time into RGB form and displays the color as the background. You can treat it like a screensaver. Inspired by the ColourClock by Jack Hughes. The original design belongs to lookatjack.com. By Lang Zhou. 2019/02/11

 ColorCube   (details) Prime ENG   64KB/35KB The possible colors of an RGB Pixel can be thought of as a color cube with edges aligned on red, green, and blue axis. ColorCube draws the color cube in slices, and allows you to navigate about and select colors within the context of the color cube. By JF Sather. 2014/10/19

 Colores   (details) Prime ENG ESP   26KB/1KB Lets the user scroll through various colors (black/blanco, gray/gris, white/blanco, etc.) using the plus and minus buttons, showing the names in both English and Spanish. By Eddie W. Shore. 2018/05/28

 Colores 1.0   (details) Prime ESP   36KB/11KB Shows all possible colors of the calculator (16-bit color) and returns the selected color. By Carlos Campos Guerra. 2015/10/24

 Colourful Polygon Explorer   (details) Prime ENG   3KB/3KB Use the cursor to play with some polygons. Use left and right to change the number of sides and up and down to rotate it. By matalog. 2021/05/23

 Column Stability Factor of a Wood Column   (details) Prime ENG   4KB/4KB Calculates the slenderness and the column stability factor of a Douglas-Fir wood column. By Eddie W. Shore. 2015/08/20

 Columns   (details) Prime ENG   6KB/31KB Tetris-like puzzle. It takes place inside a tall, rectangular playing area. Columns of three different symbols (such as differently-colored jewels) appear, one at a time, at the top of the well and fall to the bottom, landing either on the floor or on top of previously-fallen "Columns". By Han Duong (HPSolo). 2014/10/19

 Combined Internal Rate of Return   (details) Prime ENG   3KB/3KB An investor has several projects, each with their own initial investments and discount rate. The net present value is calculated (NPV) for each project. If the investor combines all the projects into one set of cash flows, this program calculates the effective internal rate of return. By Eddie W. Shore. 2018/05/17

 Combo Loan   (details) Prime ENG   5KB/3KB Calculates the payments for both separate loans and combined loans. This particular loan covers of three types: 80:20, 80:15:5, and 80:10:10. By Eddie W. Shore. 2018/04/09

 Command Tree 13217   (details) Prime ENG   2066KB Full documentation from the HP Prime command tree help, extracted into a 188-page PDF document for easy reading and searching. From ROM version 13217. By Terje Vallestad and Hewlett-Packard. 2017/12/28

 Commands List   (details) Prime ENG   564KB Full list of all the commands in Prime, including descriptions, as extracted from the calculator. In Excel, Excel XML, and PDF format. Author unknown. 2014/02/01

 Commands List 13217 2.0   (details) Prime ENG   83KB Contains the contents of Command Tree (2.1.14181 2018-10-16) exported into Excel and plain text for easier viewing of all the functions of the calculator. By Frank P. 2019/03/25

 Compl3d 1.4   (details) Prime ENG   65KB/109KB 3D complex function output surface for fixed real or imaginary input and 3D scatter plot of L1. Real or imaginary axis is used for real / imaginary output domain to display a 3D output for the fixed input. {x,y,z} values in L1 are displayed with a cross and numbered in the 3D plane. Input dialogs used for configuration and touch gestures as well as keys to rotate, move and zoom the graph. By Frank P. 2021/09/12

 Complex CAS   (details) Prime ENG   4KB/1KB An initial version of a library of complex functions, including the argument of a complex number given in Cartesian form (x,y) and conversion from polar to Cartesian form. Author unknown. 2015/08/20

 Complex Number Arithmetic and Lambert Function   (details) Prime ENG   3KB/3-6KB Two sample Python programs, one which performs the four arithmetic functions on two complex numbers, and the other which approximates the Lambert W function, estimating w given complex number z using Newtons Method. By Eddie W. Shore. 2021/07/30

 Complex Plotting   (details) Prime ENG   13KB/1-25KB Pair of programs that do complex number plotting. By Daniel Mewes and Han Duong (HPSolo). 2017/03/18

 Complex Prime Number Test   (details) Prime ENG   2KB/1KB Tests whether a complex number is a prime number. Of course, every number on the HP Prime is prime! By Eddie W. Shore. 2015/08/20

 ComplPlot 001   (details) Prime ENG   51KB/16KB My 3D color view skills have problems interpreting complex function characteristics from the domain coloring scheme. Therefore, I played around with one imaginary and one real color intensity mapped directly linear to a given value range. By Frank Plate. 2019/12/29

 Compound Pendulum   (details) Prime ENG   2KB/5KB Given Mass, Height, and Time, I (lbs-ft^2) and Io (lbs-ft^2) are calculated. As with all of the author's spreadsheets, the blue text cells are the input data and the red text cells are the calculated output data. By Jim B. Williams. 2020/04/12

 Compressible Aerodynamics Calculator 1.0   (details) Prime ENG   13KB/43KB Based on the Javascript by William J. Devenport (and modified by Adam Ford to include Fanno Flow and Rayleigh Flow). By Bruno Ferreira Porto, William J. Devenport, and Adam Ford. 2014/10/18

 Condition Number of a Function   (details) Prime ENG   3KB/2KB Returns the Condition number for a function f(x), defined as: Cond = abs( x * d/dx f(x) / f(x) ). By Eddie W. Shore. 2020/04/12

 Cone Properties   (details) Prime ENG   2KB/6KB Given cone diameter and cone height, the other eight properties are calculated. As with all of my spreadsheets, the blue text cells are the data input cells and the red text cells are the calculated output cells. By Jim B. Williams. 2020/01/16

 Congruence Equations   (details) Prime ENG   2KB/1KB Solves congruence equations. By Eddie W. Shore. 2014/10/22

 Conic Section   (details) Prime ENG   7KB/17KB Calculates something with the conic section. Author unknown. 2018/05/01

 Conic Sections - Equation of 2nd Order 1.03   (details) Prime ENG   23KB/12KB Finds the type and characteristic items of conic sections, if the general equation of 2nd order is given in the form: a0*x² + b0*x*y + c0*y² + d0*x + e0*y + f0 = and draws the plot after calculation. By Claus Martin Dachselt. 2019/04/02

 Constants in English 1.0   (details) Prime ENG   1KB/1KB Common physical constants by Mickaël Nicotera and translated to English. Copy and paste text directly into a new program that you create. By Mickaël Nicotera and Michael Rheaume. 2014/10/18

 Continuous Beam 2.01   (details) Prime ENG   189KB/19KB Calculates the support moments of a continuous beam having different moments of inertia (Mb for a two-field span, Mb and Mc for a three-field beam). Several load cases for the same beam can be performed. Accepted are trapezoidal- and point loads, split in dead- and live load. By Claus Martin Dachselt. 2018/12/09

 Contour Map 1.0   (details) Prime ENG ESP   2KB/4KB Small program for plotting the contour map of any two-variable function. By Sebastian Roca. 2020/06/06

 Contour Plots   (details) Prime ENG   3KB/1KB Creates 2D contours using the Advanced Graphing app. The user's current formulas are kept safe, and are restored after the contours are drawn. I had hoped to incorporate this into the Graph3D app, but the current implementation of startview() and how apps handle built-in applications are currently preventing this from happening. By Han Duong (HPSolo). 2014/10/19

 Control System Programs   (details) Prime ENG   16KB/36KB Ten programs that could potentially be useful for anyone in a control systems class. The first program takes as input the system matrix (a) and the input matrix (b) to find the controllability matrix. With it there is another function that will check if the controllability matrix found is controllable or not. The next program takes the system matrix (a) and the output matrix (c) as inputs to find the observability matrix. Along with it is another function to check if the observability matrix is observable. The third function uses Ackermann's Formula to find the feedback constants. It takes as input the system matrix (a), the input matrix (b), and the desired characteristic equation coefficients. The other programs convert the system from a statespace model to a transfer function, convert the system from a transfer function to statespace form, create the Routh table from the characteristic equation, find the Static Error Constants (Kp - position, Kv - velocity, Ka - acceleration) and also their respective steady state errors (essp - step, essv - ramp, essa - parabola), solve for all possible input combinations to solve for a second order system, graph the step response of the transfer function, and find the step response characteristics of the step response graph. Author unknown. 2020/10/06

 Control Systems 3.0   (details) Prime ENG   954KB/309KB Used to study the frequency domain response of control systems consisting of a process and a controller. Open loop response with and without controller and resulting closed loop response (unity feedback loop) can be determined / compared. The app takes as input the transfer function of a process as well as the settings of a (PID) controller. It includes a ‘Bode plot’ which combines magnitude and phase plots on the same screen, indicating real frequency (log scale) and magnitude (log or dB scale) values, and not the logarithm of these values, although logarithmic scales are used. This Bode plot does not rely on the built in HP Prime plot mechanism but is programmed from scratch, including mouse movement and key press detection and custom soft key menus to accomplish functionality that would not be possible otherwise. The app also draws Nyquist and Nichols plots. Includes PDF documentation. By Herwig Taveirne (hata). 2019/04/02

 Control Systems Stability   (details) Prime ENG   3KB/3KB For control systems stability, this will give you the Routh-Hurwitz Matrix = M25, though it will not tell you how many poles lie in the left/right planes. Author unknown. 2016/08/04

 Converters 1.0   (details) Prime ENG   5KB/14KB This program can help you easily translate text to binary, binary to text, text to hex code, hex code to text, "read" (say the beeps) Morse Code, and convert text to Morse Code. It cannot yet convert Morse Code to text By BushBush Saur. 2019/04/09

 Conways' Game of Life 2.4   (details) Prime ENG   11KB/15KB Simulation of Conway's Game of Life. By Patrice Torchet. 2014/10/19

 Coordinate Conversion   (details) Prime ENG   2KB/2KB Performs coordinate conversions between rectangular, cylindrical, and spherical. By Eddie W. Shore. 2016/08/03

 Coordinate Converter 1.2   (details) Prime ENG   4KB/15KB Converts coordinates between different systems. For example, it will convert between X=8 Y=6 Z=4 in rectangular and 10 36.87 4 in cylindrical and 10.77 36.87 68.20 in spherical. By Bernard Michaud. 2016/08/06

 Coordinate Converter Ultimate   (details) Prime ENG   5KB/9KB Yet another converter which when one system is entered(Cart., Cyl. or Sph), the other two system are simultaneously converted and all three system are displayed along with the graph showing the position of each variables on the graph. By Bernard Michaud. 2017/02/11

 Coordinates Converter 1.0   (details) Prime ENG   169KB/18KB Converts between rectangular, cylindrical, and spherical coordinates. This program has a restriction where one needs a unique set of coordinates for each point. Restricting the radius to be non-negative (ρ ≥ 0), the azimuth 'θ' to lie in a specific interval spanning 360° or 2π, such as (-180°,+180°] or (-π,+π] and inclination 'φ' to specific a interval spanning 180° or π, such as [0°,180°] or [0,π]. By Gustavo Madureira. 2016/08/02

 Copycat   (details) Prime ENG   62KB/109KB An incomplete clone of Terry Cavanagh's Copycat. Written in python. Currently only 3 powers are implemented, and the game is kind of laggy and buggy, but it is totally playable. Warning: flashes of light included. By febilly. 2022/02/27

 Cosine Regression   (details) Prime ENG   2KB/3KB Attempts to fit data to the curve Y = A*cos(C*(X-D))+B. The user will provide the x-data, y-data, and the period of the data. Radians mode will be used. By Eddie W. Shore. 2017/07/28

 Costs, Return, Profit 1.01   (details) Prime ENG   415KB/12KB From defined preconditions the program finds the function of return R(x) (linear or quadratic function), the function of costs C(x) =*x^3 + b*x^2 +c*x + d and calculates characteristic properties of both of them and the profit function P(x) =(x)-C(x). By Claus Martin Dachselt. 2021/04/10

 Coulib   (details) Prime FRA   15KB/3KB Set of variables with French names for common colors, useful for programmers. Author unknown. 2014/10/18

 CSTMENU   (details) Prime ENG   4KB/7KB A compact and elegant program that allows the customization of the soft keys in a consistent manner, whether for the global environment or for each Prime app. Now it is possible to have at any entry window your preferred characters or commands, e.g., Greek characters for scientific writing, preferred units for fast unit conversion or fast access commands with customized entry. Menus are swiftly managed with the four ways of the directional pad (left/right/up/down). By Ramón de la Rosa Steinz. 2021/01/17

 CSV 0.1   (details) Prime ENG   8KB/16KB Loads and parses CSV files and strings. By Stephen Lewkowicz (G1CMZ). 2017/02/11

 Cube   (details) Prime   3KB/13KB A cube that can be rotated. By Bing Guo. 2018/12/09

 Cube 1.0   (details) Prime ENG   135KB/108KB 3D cube puzzle simulator, like a Rubik's Cube. A 3D cube is displayed in 3D from two views; front/top and back/bottom. Moves are made using the keypad numbers followed by + or -. A list of moves in standard form is maintained on screen, plus exported to a list variable (L0.) A help screen is supplied and accessible from the 'Help' button inside the app. By Steve Wright. 2020/12/30

 Curve Calculator   (details) Prime ENG   9KB/30KB Horizontal and vertical curve calculator where you enter the curve data you have and let it calculate the rest. If one of your inputs is degree curve it will prompt for chord or arc definition. After it calculates the curve data you press OK or "Enter" to bring up the next screen with the areas. By C.D. Dodds. 2017/02/11

 Custom Menu Using a User Key   (details) Prime ENG   2KB Shows how to create a custom menu using a user key. By Eddie W. Shore. 2022/02/27

 cycleSPD 1.0   (details) Prime ENG   2KB/8KB This is a small program that can help convert bicycle speed, cadence, and front and rear gear ratios, according to your wheel circumference. By Xinyang He. 2022/07/31

 Day of Year   (details) Prime ENG   2KB/1KB Shows two ways of calculating the day of the year of a given date. By Eddie W. Shore and Damien Unknown. 2014/10/22

 Daylight   (details) Prime ENG   2KB/1KB Calculates the length of daylight for any day given the Earth's latitude of the observer (from -90° (South) to 90° (North)) and the number of days since the December solstice (around December 21-22). Note that is different from many approximate formulas which used the vernal equinox as a starting point. By Eddie W. Shore. 2016/08/03

 Dé   (details) Prime   1KB/1KB Dice throwing simulation game. By Mickaël Nicotera. 2013/10/05

 dec   (details) Prime ENG   3KB/1KB Outputs the exact internal decimal value of a floating point number in CAS. It is similar to (and is based on) the author's "hex" program with the only difference being that the output of "dec" is in standard decimal format, instead of hexadecimal. By Joseph K. Horn. 2018/09/23

 Dec2Frac   (details) Prime ENG   3KB/1KB Converts decimals to fractions. By Namir Shammas. 2014/10/22

 Decimal Period of 1/X in Base Y   (details) 49/50 Prime ENG   4KB/1-2KB A set of programs to calculate the Decimal Period of 1/X in Base Y or the Multiplicative Order of Y (mod X). Includes a version for the Prime as well as both a User RPL and System RPL version for the 49/50 series. By Joseph K. Horn, Gerald Hillier, and Thomas Ritschel. 2018/01/24

 Decimal to Any Base   (details) Prime ENG   3KB/4KB Two programs that allow conversion of integers from decimal to any designated base. Integers used in base other than 10 are presented in list format. Each digit is separate and listed in order of descending place value. By Eddie W. Shore. 2017/02/11

 Défi de Courage - Triconcours 2018   (details) Prime FRA   28KB/36KB The triforce of courage was divided into eight fragments scattered around the four corners of Hyrule's sky. Fortunately the Cyclos storm god lends you his flying cloud, the famous Kinto1. The legend tells that rare are the beings able to ride it, that one must have the perfectly pure heart. Collect a maximum of fragments to realize the best possible score! The game allows you to control Kinto1 directly with your calculator, with two control modes: manual, where you control in real time the movements of the cloud with not 4 but 3 keys, and autopilot, where you provide the movements in advance in the form of a list, switching to manual mode once the list is exhausted. In either case you will be given a score that your goal is to maximize. Created for a French competition through TI-Planet. By Xavier Andréani. 2018/10/14

 Défi de Force - Triconcours 2018   (details) Prime FRA   17KB/23KB Using a control panel of 30 potentiometers from 0 to 1 that control up to 252 lamps, light up the maximum number of light bulbs with minimal energy while wasting as little as possible. Created for a French competition through TI-Planet. By Xavier Andréani. 2018/10/14

 Degree of a Polynomial   (details) Prime ENG   2KB/1KB A more complete version of the degree command. The degree command tests a single variable, defaulted to x if no variable is specified. This CAS program calculates the degree of a polynomial, considering four variables: x, y, z, and t. Combinations of these four variables, such as x*y, x*y*z, and t*z are also considered. By Eddie W. Shore. 2016/08/06

 Delta trinôme   (details) Prime FRA   2KB/4KB Table of changes and delta trinomial program. By Mickaël Nicotera. 2013/10/05

 Delta Wye Converter   (details) Prime ENG   3KB/9KB Set the number of digits, enter the position of the resistances or impedances in the network, and then enter the data for the wye network and the delta network, and it will give the result in both rectangular and polar forms. By Bernard Michaud. 2018/04/03

 Densidad In-Situ AASHTO T-191   (details) Prime ESP   3KB/9KB Calculates AASHTO T-191 density control using the sand cone method. By Jose Edgar Campos Cespedes. 2021/11/24

 Depreciation   (details) Prime ENG   8KB/18KB Calculates the depreciation of an asset with the methods of SL (straight line), DB (declining balance) and SOYD (Sum of the Year Digits), giving cost of fixed asset, residual value (salvage v.) and useful life of asset (years). The program exports tables of depreciation as matrices: D_SLmat, D_DBmat, D_SOYDmat, and (for DB method) the "full end rate", D_DBendRate. By Salvo Micciché (salvomic). 2015/08/20

 Dessiner   (details) Prime ENG   2KB/2KB Draw pictures with 10 colors and 3 brush widths with your fingers. By Mickaël Nicotera. 2013/12/22

 Dew and Bubble Point 2.0   (details) Prime ESP   14KB/110KB Allows you to calculate the Dew Point (temperature, pressure and composition of the first drop created in a gas mixture) and Bubble Point (temperature, pressure and composition of the first bubble created in a liquid) of a mixture of "N" number of components. To make the calculation, the Secant Method is used to find the roots. You can also choose between using Antoine or McWilliams (if it's a hydrocarbons' mixture) parameters. By Gonzalo Menayo. 2020/12/29

 DFX 1.2 (10077+)   (details) Prime ENG   6KB/20KB Multi-function program simulating the 50g's date functions DDAYS and Date+ (HP Prime = DPLUS). In addition there are further functions like JDN, N2J, DOW, CALD, DOE. DFX functions are designed to be called from both the CAS and HOME environments, including the ability to choose them with softkeys. By Wolfgang Kühn. 2016/08/03

 DHCanales 1.0   (details) Prime ESP   31KB/370KB Does calculations for Normal Strap (Bisection Method - Secant Method), Critical Strap (Bisection Method - Secant Method), Flows (Maning equation), and Maximum Efficiency (Maning Equation) By Danny Davis Sosa Lozano. 2020/07/05

 Diameter of a Gas Pipeline 7.0   (details) Prime ENG POR   5KB/27KB Calculates the inner diameter of a pipeline using 9 calculation models (Theoretic, Weimouth, Panhandle-A, Panhandle-B, IGT, Mueller, Fritzsche, AGA-A, AGA-B). The listed calculation models are specific for flowing real gases in long ducts under approximately constant temperature (Real Fluid Isothermal Flow). Models include the gravitational energy term, allowing better results for ducts through mountain regions. By Antonio Ricardo Bozolla. 2021/09/12

 Diameter of an American Wire Gauge   (details) Prime ENG   3KB/2KB Given the wire number, this program returns the diameter of the wire in inches. By Eddie W. Shore. 2018/12/27

 Dichotomy   (details) Prime ENG   3KB/4KB An implementation of the Dichotomy number guessing game. By Pinkman. 2020/06/06

 Differential Equation of 4th and 3rd Order, Part 1 1.03   (details) Prime ENG   1153KB/15KB Finds the solution y(x) = y_hom + y_part to the differential equation (D.E.) of 4th order a*y^(4) + b*y''' + c*y'' + d*y' + e*y = g(x) or of 3rd order b*y''' + c*y'' + d*y' + e*y = g(x), where a = 0. By Claus Martin Dachselt. 2020/12/30

 Differential Equation of 4th and 3rd Order, Part 2 1.02   (details) Prime ENG   1125KB/10KB Finds the solution y(x) = y_hom + y_part to the differential equation (D.E.) of 4th order a*y^(4) + b*y''' + c*y'' + d*y' + e*y = g(x) or of 3rd order (a = 0) b*y''' + c*y'' + d*y' + e*y = g(x), where g(x) = e^(alpha*x) * [c1*SIN(beta*x) + c2*COS(beta*x)]. By Claus Martin Dachselt. 2020/12/30

 Digamma Function   (details) Prime ENG   2KB/2KB Calculates the digamma function for any positive integers and multiples of 1/2 (such as 3/2, 5/2, 7/2, etc) using the formulas: ψ(1/2) = -γ – ln 4 = -1.963510026, ψ(1) = -γ = -0.5772156649, ψ(n) = Σ(1/x, x, 1, n-1) - γ for n is an integer, and ψ(n) = Σ(2/(2*x+1), x, 0, n-3/2) - γ – ln 4 for n a multiple of 1/2 for the form p/2, p is odd, where γ = 0.577215664901533 (Euler-Mascheroni constant) By Eddie W. Shore. 2017/12/28

 DIMGROB Generator   (details) Prime ENG   266KB This program is designed to help you create DIMGROB_P statements for the HP Prime calculator, to convert images from PC formats to something the calculator can use. Author unknown. 2013/12/22

 Directional Derivative   (details) Prime ENG   2KB/1KB CAS function to calculate the directional derivative. By Salvo Micciché (salvomic). 2015/08/20

 Distance from the Sun & Orbital Speed   (details) Prime ENG   5KB/3KB Calculates the distance a planet (and dwarf planet Pluto) is from the sun and the speed of the planet, given at any given the number of Earth days (and partial Earth days) from the perihelion. A planet is at its perihelion is when the planet is closest to the Sun in its elliptical orbit. Earth is at its perihelion approximately January 3 to January 5 annually. By Eddie W. Shore. 2015/08/23

 Distance, Speed, Time   (details) Prime ENG   3KB/8KB Distance, speed, and time calculator. Enter two of the values and this solves for the missing value. By Bernard Michaud. 2018/09/09

 Distance, Speed, Time Calculator Using Units   (details) Prime ENG   35KB/11KB A distance, speed and time calculator that uses the Units, MKSA, and CONVERT functions. Enter any two variables and solve for the third. When solving for the unknown variable, you need to specify the units of the unknown variable. When using h°m′s'' units for time, you need to enter the degrees, minute, and seconds symbols. One hour, 30 minutes and 45 seconds is entered as 1°30′45" By Gene Shiomoto. 2019/08/29

 Dompter sa HP Prime en 10 minutes   (details) Prime FRA   331KB A quick 10-minute introduction to the Prime, covering basic math, commands, a few CAS operations, tracing a function, and running user programs. In PDF format. By Mickaël Nicotera. 2017/05/02

 Dosificar Hormigon ACI-211 1.0   (details) Prime ESP   4KB/13KB Program that does calculations related to the ACI-211 concrete dosing method. By Jose Edgar Campos Cespedes. 2021/12/31

 Double Integral by Monte Carlo Method   (details) Prime ENG   52KB/3KB Calculates the double integral ∫ ∫ f(x,y) dx dy over a circular area with center (X, Y) and radius R using the Monte Carlo method. By Eddie W. Shore. 2018/12/21

 Draw 0.0   (details) Prime ENG   2KB/4KB This is a very simple drawing program for drawing white pixels on a black canvas, with a nice red cursor. It is good for pixelart but the creations can NOT be saved, but if you are bored it maybe has some value. By Simon Bryntse. 2020/09/30

 DrawIcon   (details) Prime ENG   5KB/3KB Shows how to draw an icon, with both 4x4 and 6x6 examples. By Eddie W. Shore. 2014/10/22

 Drawing 3D Lines and Boxes   (details) Prime ENG   117KB/10KB Explains the 3D features of the LINE and TRIANGLE commands, with sample code to draw 3D lines and boxes. By Eddie W. Shore. 2019/04/29

 Drawing Cards and Video Poker   (details) Prime ENG   5KB/5KB A function that draws a set number of cards from a deck of 52 standard playing cards, along with a program that uses it to allow you to play poker. By Eddie W. Shore. 2020/04/12

 DrawMenu   (details) Prime ENG   2KB/3KB Shows how to use DRAWMENU to create CAS menus. By Eddie W. Shore. 2014/10/22

 Earthquake Calculations 1.2   (details) Prime ENG FRA   11KB/26KB Calculates M0, Magnitude and energy of a quake, and compares quakes. All of the formulae here can be applied to earthquakes, many can also be applied to other planets. By Stephen Lewkowicz (G1CMZ). 2019/07/20

 Easy Matrix   (details) Prime ENG   373KB/85KB This program is not designed to solve intricate matrix problems, but to facilitate the entry of data in matrices and perform many operations as described in the User Manual chapter 26. By Bernard Michaud. 2016/08/04

 Easy Sto   (details) Prime ENG   5KB/17KB Adds key assignment to EEX to allow sto with 2 clicks. In other words, press EEX+EEX for EEX. Press Shift+EEX+EEX for ▶. Press EEX+a..z for ▶a..z (no ALPHA on needed). It also detects if a char exist before the expression/number to be wanted to store and uses Ans▶ or ▶ according to situation. When sto mode is on, ▶a..z symbol is displayed in the status bar. Additionally it works with uppercase in non-CAS mode. By V Volkan. 2018/10/13

 Easy Sto II   (details) Prime ENG   169KB/16KB An update to Easy Sto. This version has been changed up a bit to get it to feel closer to stock. It still has the "EEX<>P" collision issue, but it now has a few alternatives so users don't have to remember much to use it. Also, the icon has been updated the icon to match the built-in fonts, pass-through support and dynamic UI updates have been added, and the whole thing has been tuned for lower latency. It's consistently under 15 ms on G2 hardware now. By V Volkan and I. Harwell. 2022/02/27

 Easy Subscripts   (details) Prime ENG   5KB/11KB Uses the concept of Easy Sto II and applies it to entering subscripts. This lets you set it up so that Alpha->Space enters subscript mode. In that mode, the number keys, +, -, and = enter the appropriate subscript symbol. By I. Harwell. 2022/02/27

 EC-DE-Estado 1.0.0   (details) Prime ESP   7KB/126KB Program for the Thermodynamics course. Contains the equations of VAN DER WALLS-REDLICH KWOONG-R.K SOAVE-PENG ROBINSON. By Réne Llanos Machuca. 2021/05/23

 Eclipses of Moon and Sun 1.0   (details) Prime ENG   5KB/14KB Finds for a date given as yyyy.mmdd the next dates for full moon and new moon and checks for the occurence of a lunar and/or solar eclipse. If positive, some characteristics like kind of eclipse, magnitude and size of shadow in Earth radii ( E.R. ) are calculated. By Claus Martin Dachselt. 2018/02/27

 EDM Slope Reduction   (details) Prime ENG   3KB/3KB Calculates the curvature correction due to the Earth, the horizontal distance from observer to reflector at both elevation of the observer and at sea level, and the change of in elevation from observer to reflector, given the slope distance between observer to reflector, the height of both the observer and reflector’s instruments, the elevation the observer, and the zenith angle: angle from directly above to the slope distance line. By Eddie W. Shore. 2017/07/28

 EEC Solver   (details) Prime ENG   1174KB/336KB Electrical and electronic circuit solver that solves AC or DC circuits with linear and non-linear elements. The program implements a full graphic interface to edit circuits, with useful functionality such as copy/paste, undo/redo, moving and rotation of parts, etc. It can solve both AC and DC circuits with both linear and non-linear elements. The non-linear elements supported include: BJTs, MOSFETS, diodes, LEDs, and zeners. The results of the solution are displayed in the circuit editor itself. By Jesus Calvino-Fraga. 2018/10/14

 Effective and Nominal Rate   (details) Prime ENG   2KB/2KB Calculates the effective and nominal interest rate (both finite and compound). By Salvo Micciché (salvomic). 2015/08/20

 Effemeridi   (details) Prime ENG   47KB/259KB Astronomy program that calculates ephemeris for Sun, Moon and planets, transit, sidereal time, nutation and obliquity, Julian date, ascendant and many others data. Best used with Astro Lab. For use with firmware 10077 or higher. By Salvo Micciché (salvomic). 2016/08/03

 Elastic Grids   (details) Prime ENG   2KB/1KB Shows how to apply a magnification, rotation, or twist effect to a grid. By Damien Unknown. 2014/10/22

 ElectLibrary 1.0   (details) Prime ENG   8KB/38KB Sample of an electrical engineering library. This will be more comprehensive once complex number support is added to the HP Prime solver, but for now it is just a demo of what is to come. By Bernard Michaud. 2016/09/11

 Ellipse 2.0   (details) Prime ENG   3KB/10KB Using the solver app, for an ellipse, solves for area, circumference, ellipticity, and eccentricity. Length of radius 1 and 2 are calculated using the two angles you enter. For an elliptical sector, solves for area, radius 1, and radius 2. For an elliptical arc, solves for radius 1, radius 2, chord, sector area, and arc area. By Bernard Michaud. 2019/02/11

 Ellipse Coordinate Converter   (details) Prime ENG   3KB/6KB Converts Degrees, Radian, Gradian, and (X,Y) Coordinates. I can't get it to work, however. By Bernard Michaud. 2018/03/14

 Ellipse, Secant, Tangents 1.02   (details) Prime ENG   99KB/9KB Being given an ellipse E described by its center (xM,yM), semi-major axis a and semi-minor axis b in combination with a point P0(x0,y0) outside, Pc(xc,yc) inside or a secant defined by f(x), this CAS-program finds characteristic items like tangents T1, T2, tangential points P1, P2, chord between P1 and P2 and some more quantities and draws the plot. By Claus Martin Dachselt. 2019/02/23

 ELLIPSES 1.0   (details) Prime ENG   2KB/3KB User inputs the semimajor axis and eccentricity of an elliptical orbit. The code finds distances for periapsis, apoapsis, semiminor axis, semilatus rectum, focal parameter, circumference of orbit, and the separation between the primary focus and the orbiting object where the latter has its average speed in orbit relative to the former, and, finally, the true anomalies for this average speed. By David Sims. 2020/06/06

 Elliptic Integrals   (details) Prime ENG   3KB/3KB Handles elliptic integrals of the first, second, and third kind. By Salvo Micciché (salvomic). 2017/10/30

 Emissione Sonora Tubazioni   (details) Prime ITA   3KB/11KB Calculates sound emissions from compressed air pipes. By Danilo Ducci. 2020/05/03

 Engineering Equation Library and Analysis 6.0   (details) Prime ENG   3401KB/222-951KB A compilation of equations used in Electrical Engineering. The program will pass the "selected topic" to the Prime Solver App. Handles Ohm's law, circuit analysis, passive filters, delta/wye conversions, Wheatstone bridges, transformers, and more. Includes PDF documentation. By Bernard Michaud. 2022/02/27

 EngSci   (details) Prime ENG   3KB/5KB Handles Engineering or Scientific adjustment using the number on the Stack and increases or decreases the exponent EEX simulating <-ENG ENG-> keys. This program is not meant to compete with the more advanced program Casio-Style ENG Button but simply uses a different approach and graphical interface. By Bernard Michaud. 2018/01/07

 Entry Method Tester   (details) Prime ENG   4KB/8KB Provides a set of routines for demonstrating how various entry methods work, including WAIT(0), WAIT(-1), GETKEY, ISKEYDOWN, ISKEYDOWN(-1), and MOUSE. Author unknown. 2017/02/11

 Entry Mode Switcher   (details) Prime ENG   3KB/2KB Makes it very easy to switch between Textbook, Algebraic, and RPN with visual feedback. Also includes a pop-up version. By Cristóbal De Jesús and others. 2019/12/31

 Epidemic Model SIR   (details) Prime ENG   236KB/5KB Epidemic model SIR. Inspired by a recent video on Numberphile I have coded the well-known SIR-model of an epidemic. By Thomas A.. 2020/05/03

 Epoch   (details) Prime ENG   4KB/4KB Given an epoch and a time zone, returns date and time. Given a date and time, returns Epoch seconds in UTC time. By Salvo Micciché (salvomic). 2018/01/24

 EQT   (details) Prime ENG   4KB/1KB Equation of time approximation. The equation of time describes the difference in time (seconds, minutes, or hours) between the true solar time and time as we normally know it (a day takes 24 hours). If we used a sundial to measure time and compare it against a mechanical watch, the equation of time would demonstrate the approximate difference. By Eddie W. Shore. 2015/08/20

 Equation Library 1.0   (details) Prime ENG   227KB/21KB Offers 47 equations for HP Prime's Solver App. Just run the eqlib program, select the category that you are interested in, and select the equation within that category and you are off and running. Categories include: Geometry (areas, volumes, surface areas), Finance (monthly loans, sales tax, break-even), Temperature Conversion (Fahrenheit to and from Celsius), Physics: Problems of Motion (linear distance, circular motion, pendulums, terminal & escape velocity), Sound (speed of sound, Doppler effect, loudness), Optics (Lens and Snell equations, spherical refraction), Electronics (2 resistors series and parallel, thermal noise, Ohm's Law), Astronomy (parallax, luminosity, Kepler's 3rd Law, time dilation), Great Circle Calculations, Angle of Incidence Calculations, Gases (Ideal and Boyle's Gas Laws, heat capacity, air density, isothermal expansion), and Fluids (depth pressure, fluid flow, Bernoulli's Equation). By Eddie W. Shore. 2015/08/19

 Exploring IB Maths   (details) Prime ENG   1156KB A 42-page PDF to help a student studying for the International Baccalaureate Diploma Maths with an HP Prime, introducing mathematical operations, the CAS, apps, plotting linear and quadratic functions, using matrices, sequences, and series, introducing statistics including two variable data and confidence intervals, doing calculus including differentiation and integration, and more. By Chris Olley. 2017/05/02

 Exploring Maths at Advanced Level   (details) Prime ENG   1470KB Aimed at users of the Prime and 39gII graphing calculators, who are studying for an advanced level exam in mathematics (English A Levels, Scottish Highers, French and International Baccalaureate, German Abitur, Netherlands HAVO and VWO 3/4 level and equivalent in other countries). The aim is to provide a range of activities which will help you become a confident user of the calculator while developing your skills in different mathematical topics. By Chris Olley. 2017/04/30

 Extended Precision Library   (details) Prime ENG FRA   346KB/33KB A library of functions to allow unlimited floating point precision for all arithmetic and most transcendental functions on the Prime. Includes comprehensive PDF documentation. By G. E.. 2019/05/27

 F Variance Test   (details) Prime ENG   3KB/4KB Calculates the F Test for variances of two populations. By Salvo Micciché (salvomic). 2015/08/20

 Factor Analysis   (details) Prime ENG   16KB/9KB Performs a factor analysis including estimation of commonalities according to the iterative principal factor analysis and a varimax factor rotation. Factor analysis is a multivariate statistical method to find hidden variables behind a set of variables. By Raimund Wildner. 2019/12/31

 Factores para Ingeniería Económica   (details) Prime ESP   2KB/14KB Useful program that contains all the factors for calculations involving Economic Engineering. By Arnoldo José París Monagas. 2017/12/17

 Farey Series   (details) Prime ENG   3KB/3KB Rounds a decimal value to fraction using the Farey series. By Patrice Torchet. 2014/10/19

 Feet/Feet-Inch-Fraction Conversions   (details) Prime ENG   3KB/4KB Converts between feet/inches/fractions (in 16th of an inch) and decimals, for FF.IINN to Feet and Feet to FF.IINN. For example, FTFI(5.78125) returns 5.0906 (5.78125 ft is 5 ft 9-6/16 in, or 5 ft 9-3/8 in). By Eddie W. Shore. 2018/12/21

 Fiber Optics Equation Library   (details) Prime ENG   3KB/2KB Using the half-increment solution by Robert M. Eisberg, solves the numerical differential equation d^2y/dt^2 = f(dy/dt, y, t) given the initial conditions y(t0) = y0 and dy/dt (t0) = dy0. By Eddie W. Shore. 2017/02/11

 Fiber Optics Equation Library 2.0   (details) Prime ENG   330KB/70KB Extensive library of equations that can be used in a course in Fiber Optics. The variables may vary slightly, but a variable description is provided in each topics before the program is transferred to the Solver. There are a total of ~130 variables all listed with a description. If you are familiar with Prime programming, you can append your own equations to expand the library. Includes comprehensive PDF documentation. By Bernard Michaud. 2019/10/25

 Fibonacci Triangle Matrices   (details) Prime ENG   357KB/2-5KB Has the program FIBMAT to generate the Fibonacci Triangle in matrix form, and the program FIBTRI to visualize the Fibonacci Triangle. By Eddie W. Shore. 2018/12/27

 Fick Cardiac Output   (details) Prime ENG   4KB/3KB Uses the Fick cardiac output equations to calculate CO (Cardiac Output in L/min), SV (Stroke Volume in ml), CI (Cardiac Index in L/(min/m^2)), and SI (Stroke Index in ml/m^2) given the inputs Ca (Arterial blood oxygen (O2) content percentage), CvO2 (Venous blood oxygen (O2) content percentage), VO2 (Oxygen compulsion (in ml per pure oxygen gas per minute, STPD)), HR (Heart Rate in beats per minute), height in cm, and weight in kg. By Eddie W. Shore. 2017/04/15

 Fingerspelling 0.3   (details) Prime ENG   13KB/25KB Implements an accessibilty resource for the deaf and visually impaired, using AFiles. Fingerspelling graphics must be provided by the user (One per character). By Stephen Lewkowicz (G1CMZ). 2016/08/06

 Five-In-A-Row 2.4   (details) Prime ENG   7KB/18KB Play against the computer to get five in a row first. By Chong Wang. 2017/06/12

 Flappy Bird   (details) Prime ENG   14KB/17KB A clone of the briefly-popular Flappy Bird mobile phone app. Author unknown. 2017/02/15

 FlashLight 1.00   (details) Prime ENG   13KB/6KB Makes your screen flash. Has several minor bugs but they won't affect the programs; the next version will fix these and improve the UI. By Lang Zhou. 2018/09/09

 Flood It 1.3   (details) Prime ENG   67KB/21KB Given a grid with squares of different colors, your goal is to flood the entire grid, starting in the upper left corner, with the same color within 25 steps. By Tony Gallo. 2020/04/11

 Flow Control (with valve) in Parallel Lines Oil 11.0   (details) Prime ENG POR   95KB/34KB Designed to monitor the pressure (at the junction) and the flow rates in the parallel ducts, when the flow control valve is closed. Calculates API oil density (lb/ft^3), viscosity [dynamic (cP) and kinematic (cS)] of oil by Beggs & Robinson, variations in flow rates (ft^3/s), velocity (ft/s), friction factors and Reynolds numbers in the ducts, when the valve is closed, the pressure variation (psig) at the junction points when the valve is closed, and the archive comes with an image of the arrangement of the pipes with the valve. By Antonio Ricardo Bozolla. 2021/07/30

 Fluctuation   (details) Prime ENG   7KB/26KB Statistics program, plotting fluctuations. By Mickaël Nicotera. 2017/04/27

 Fonts   (details) Prime ENG   417KB/9KB Shows how to change fonts programmatically. By Juerg W. Buser. 2015/07/26

 Forced Oscillations 1.02   (details) Prime ENG   80KB/8KB Finds for the differential equation of a forced oscillation given as m*d2y/dt2 + d*dy/dt + c*y = 0*cos(omega*t) or m*d2y/dt2 + d*dy/dt + c*y = 0*sin(omega*t) or a combination of both the exact and approximate solution dependent on preset initial conditions t0, y0(t0), y'0(t0) and graphs the result. By Claus Martin Dachselt. 2019/12/29

 Forces on a Warren Truss   (details) Prime ENG   3KB/2KB Calculates the upward forces of the truss's pin and roller. The program allows for any number of beams (minimum of 1), however, all the beams have the same mass. The lengths between the pin, the beams, and the roller can vary. By Eddie W. Shore. 2015/08/23

 Formula Mass of a Compound   (details) Prime ENG   2KB/8KB This program finds the formula mass (in grams/mole) of any chemical compound typed into the calculator using standard symbolic notation for elements (e.g. "H", "Ca", "O", etc.). By Erik Swanson. 2018/02/18

 Formula Mass of a Compound 2.0   (details) Prime ENG   27KB/7KB This program finds the formula mass (in grams/mole) of any chemical compound typed into the calculator using standard symbolic notation for elements (e.g. "H", "Ca", "O", etc.). This improved version fixes some serious problems in the old version (Formula Mass of a Compound). By Erik Swanson and Yang Xiao (肖扬). 2021/12/31

 Fortran IO 0.001   (details) Prime ENG   7KB/14KB Some routines that might help parse Fortran-formatted data. A work in progress that acts as a reminder of what popular formatting codes mean. Parsing these comprehensively will never be completed, but some of the simpler formats are handled. By Stephen Lewkowicz (G1CMZ). 2017/02/11

 Forward Intersection   (details) Prime ENG   3KB/2KB Calculates the third point on a triangle where the coordinates of points A (xa, xb) and B (xb, yb) are known. Also, a line towards P point is aimed from point A at angle α° and from point B at angle β°. By Eddie W. Shore. 2017/02/11

 Fractal Plots   (details) Prime ENG   46KB/3KB Plots a fractal to simulate a Julia Set. The program will ask for a sample graphing space with a border B. It will also ask for the number of points (G), which will determine the number of points plotted in the graph. The higher G is, the more detailed the fractal is; however, the plot will take longer to complete. By Eddie W. Shore. 2019/05/27

 Fractale 1.5   (details) Prime ENG   3KB/13KB Lindenmayer fractal generator. By Patrice Torchet. 2013/12/28

 Framework - 2D and 3D 1.01   (details) Prime ENG   189KB/11KB Finds by means of successive calculation the member forces S and their components Sx, Sy, Sz in a 2D- or 3D-truss. By Claus Martin Dachselt. 2018/12/09

 Free Spans for Piping 7.0   (details) Prime ENG POR   5KB/19KB Program designed to calculate the maximum unsupported length for pipelines in operation (distributed or concentrated load). Calculates the length between the supports as a function of the suggested vertical deflection. Only for tubes with SMYS from 35 ksi. Output information in English units. By Antonio Ricardo Bozolla. 2021/09/12

 Fresnel Integrals   (details) Prime ENG   2KB/3KB Handles Fresnel integrals with the functions for S(x) and C(x). By Salvo Micciché (salvomic). 2017/10/30

 Friction Factor 1.0   (details) Prime ESP   217KB/3KB Allows you to calculate Darcy's friction factor according to the equations of Swamee-Jain, Haaland, Chen and Colebrook-White. Includes comprehensive PDF documentation. By Jhonatan Peretz. 2020/01/16

 Friday the 13th   (details) Prime ENG   2KB/1KB Given a year, returns a list of the dates that are Fridays that are the 13th of the month. By Joseph K. Horn. 2017/10/22

 Fugasity Calculations   (details) Prime ENG   7KB/2-30KB Some programs written for Fugasity utilizing PR, 2-TV, and LK also for mixtures as well as fugasity applied to Gibbs free energy. By Grayhek. 2020/09/30

 Fun with Primes   (details) Prime ENG   3KB/2-4KB Small programs to calculate the sum of the first n prime numbers, the sum of the first n prime reciprocals, and the product of the first n prime reciprocals. By Eddie W. Shore. 2017/02/11

 Function Defined by Preset Conditions 1.3   (details) Prime ENG   20KB/7KB Finds for a function f(x) of n-th degree ( n= 3 or 4 ) given as f(x) =*x^n + b*x^(n-1) + c*x^(n-2) + … the numerical values of the unknown coefficients a, b, c, … owing to preset conditions. These conditions may be: a given point P(x|y) as part of the graph of the function f(x), extremum or tangent in x for f´(x), point of inflexion in x as f´´(x)=- ( f´´(x)<>0 also possible ) - or the integral I (x) =nInt( f(x), x_lower, x_upper) between two points. After calculation, the graph F1(X) of the function is plotted. By Claus Martin Dachselt. 2018/08/18

 G2048 3.4   (details) Prime ENG   7KB/17KB The popular game of 2048, where you need to add the numbers in the squares to make powers of two. By Chong Wang. 2017/06/12

 Gallery 2.3   (details) Prime ENG   90KB/25KB Provides the ability to view PNG and JPG files natively and directly on the calculator. Supports zooming and panning, including using the touchscreen. For firmware 10077 or higher. By Manuel Andrés Vélez. 2017/08/07

 Game of 15   (details) Prime   3KB/5KB You have 15 numbered squares in a grid, and you must slide them around to put them in order. By Vlad A.B. (Vlad_AB). 2017/02/15

 Gauss Jordan Utilities   (details) Prime ENG   7KB/8KB Performs operations with Gaussian reduction (elimination), extending the tools that the Prime has already (LU, pivot, ref, RREF, etc.). Contains the following tools: Pivots (an algorithm to calculate pivots that does a "partial pivoting", returning a matrix with pivots in diagonal and upper matrix), LU_ext (an extension of the lu() command, to treat also a non square matrix and echelon forms), LDLt (performs a transposition of a symmetric and square matrix into lower, diagonal and upper), LDU (a factorization of lower, diagonal, and upper for a square matrix), echelon (returns both ref(m) and RREF(m), echelon forms), and permMatrix (given a list {} or a matrix [] with the number of rows to permute, it gives the matrix of permutation). By Salvo Micciché (salvomic). 2015/08/20

 Gauss-Jordan   (details) Prime ENG   3KB/2KB Uses the Gauss-Jordan Elimination Method in a step-by-step fashion to reduce a matrix. By Eddie W. Shore. 2016/08/03

 Geocaching Coords Solver 0.18   (details) Prime ENG   11KB/31KB Solves coordinates for geocaching. By Chromos. 2017/02/11

 Geodesy API 0.33   (details) Prime ENG   19KB/47KB A collection of useful geodesy routines. Not for navigational use (estimated 14% error). By Stephen Lewkowicz (G1CMZ). 2017/02/11

 Geodetic Conversion between WGS84 and POTSDAM 1.03   (details) Prime ENG DEU   7KB/25KB Converts between coordinates (UTM, sexagesimal or decimal degrees) of the WGS84 system to the corresponding coordinates (GAUSS-KRÜGER or degrees) in the POTSDAM system and vice versa, and finds the number of the German "Messtischblatt" including the marking of the 1/64 quadrant (8*8 subsquares). By Claus Martin Dachselt. 2021/04/10

 Geogame   (details) Prime ENG   163KB/168KB How well do you know your world? Touchscreen game where you are given a location and you must touch the map as close as possible to the actual location. By Mickaël Nicotera. 2017/05/02

 GeomCalc   (details) Prime ENG   383KB/6KB This app is part of a tutorial of making custom user apps for the HP Prime. Notes of how the app is made, as well as an app itself, are included in the zip file. GeomCalc has ten geometric calculations: five areas and five volumes. Requires at least firmware 13333. By Eddie W. Shore. 2018/02/18

 GeorefConverter 1.00   (details) Prime ENG ESP POR   7KB/14KB Converts UTM coordinates to geodetic coordinates and vice versa. By Carlos Campos Guerra. 2017/05/02

 German Moving Bank Holidays   (details) Prime ENG   6KB/22KB Calculates German bank holidays on the basis of Gauss's formula for Easter. By Achim Mrotzek. 2020/05/03

 Goal   (details) Prime ENG   158KB/161KB A simple goal shooting game. Just press left and right to move the player, ENTER to shoot, and ESC to quit. By Mickaël Nicotera. 2017/08/23

 Goldbach's Conjecture   (details) Prime ENG   6KB/3-10KB A pair of programs. The first one displays both the number of Goldbach partitions, and a list containing them. The second one is an attempt to plot the Goldbach "Comet", which is a plot of the number of twin prime summands, for each positive even integer, (up to a users specified number, and within calculator limitations). The plotted cometary tail gets more interesting for large numbers, (like 500), taking a correspondingly longer time to present, naturally. Author unknown. 2017/06/24

 Gompertz Curve   (details) Prime ENG   3KB/1KB Gets the Gompertz Curve, which is a type of mathematical model for a time series, where growth is slowest at the start and end of a time period. By Salvo Micciché (salvomic). 2015/08/20

 Gompertz Model   (details) Prime ENG   3KB/2KB Fits the data {y_1, y_2, y_3, … , y_m } to the curve y = a*b^c^x, where x = {0, 1, 2, 3, 4, … , m-1}. The program works best if the dimension (size) of the data set is divisible by 3. GOMPERTZ sorts the values into ascending order before calculation. The results returned is a 3 x 1 matrix of the parameters: a, b, and c. GOMPERTZ estimates a, b, and c and runs through one iteration to retrieve a better estimate, and may be modified by include additional iterations should the user desire. By Eddie W. Shore. 2016/08/06

 Gradian Toolbox   (details) Prime ENG   3KB/3KB Provides conversion from radians or degrees to gradians and vice versa. There are also the three basic trigonometric functions and their inverse functions that work directly in gradians. Author unknown. 2016/08/04

 Graduated Mortgage Payments   (details) Prime ENG   4KB/3KB Calculates the payment schedule of a graduated mortgage. A graduated payment mortgage (GPM) is a mortgage option that allows home buyers, particularly young, first-time home buyers, to purchase a home. The payments increase by a set percentage of at annual rate for several years until it reaches a plateau. By Eddie W. Shore. 2018/02/18

 Graph3D 2.425   (details) Prime ENG   170KB/79KB Powerful 3D graphing application. Includes rotation and tracing, with touchscreen gestures for rotation, zooming, and panning. By Han Duong (HPSolo). 2017/02/20

 Gravity 6.0   (details) Prime ENG   8KB/22KB A gravity simulator. Press shift to create a planet, alpha to create a star, and EEX to create a black hole. By Chong Wang. 2017/06/12

 Great Circle Information   (details) Prime ENG   4KB/11KB Computes great circle distances. By Tom Lake and Stephen R. Schmitt. 2018/05/17

 Greek User Keyboard 1.0   (details) Prime ENG   3KB/4KB Links Greek letters to their most logical calculator buttons to ease operation with them without having to rely on the touchscreen. Also ENTER = solve(). By Tobias Weiß. 2016/08/02

 H2OWAVES   (details) Prime ENG   3KB/2KB Calculates wave speed, impedance, and wave flux for shallow ocean waves. By Eddie W. Shore. 2017/04/27

 Hangman 2.1.3   (details) Prime ENG   155KB/245KB Implementation of hangman, where you must guess the word before the man is drawn. By Tony Gallo. 2017/04/22

 Happy Easter   (details) Prime ENG   211KB/214KB Find the bee among the flowers. By Mickaël Nicotera. 2018/04/03

 Hat   (details) Prime ENG   1KB/1KB Plots a hat. Author unknown. 2013/12/22

 Hat   (details) Prime ENG   3KB/3KB Quickly draws a green hat in Python. By Tom Lake. 2020/10/06

 Haus 3.0   (details) Prime DEU   14KB/40KB Find yourself in an unknown house, with no idea how you came or how to leave. Just a simple programming exercise in the style of old text adventures with small graphics. If you have to wait for about 30 min, you can play it to fill the time. By E. Fileschi. 2020/04/11

 Hearts 1.2   (details) Prime ENG   9KB/25KB Play the card game of Hearts. By Chong Wang. 2017/06/12

 Heat Equation 1.0   (details) Prime ESP   393KB/7KB Solves the one-dimensional heat conduction equation by means of the Forward-Difference method, the Backward-Difference method and the Crank-Nicolson method. By Jhonatan Peretz. 2020/04/11

 Heat Properties of Water   (details) Prime ENG   3KB/3KB Calculates three heat properties of liquid water based on its temperature: specific heat capacity of water (ratio of heat added or removed from an object to cause a temperature change), measured in J/(g*°C), latent heat of evaporation, measured in kJ/kg, and latent heat of fusion, measured in kJ/kg. The program accepts three measurements for liquid water, Fahrenheit (°F), Celsius (°C), or Kelvin (K). By Eddie W. Shore. 2018/02/01

 Hermite Interpolation   (details) Prime ENG   2KB/1KB This performs Hermite Interpolation for the 2-known points case, when we have points (x0, y0, y’0) and (x1, y1, y’1) and we want to determine y for a given value of x. The approximation of y is determined by divided differences. By Eddie W. Shore. 2016/08/04

 hex   (details) Prime ENG   3KB/1KB Outputs the internal representation of any real number in CAS. By Joseph K. Horn. 2015/08/15

 HexColor 1.01   (details) Prime ENG   16KB/87KB A small utility that gets a color in Hex, RGB(0-255), HSB or RGB(0.0-1.0) and converts it to the other formats, including HSL. It has a graphical interface that supports touch input for tweaking the color in HSB, as well as tools for getting the complementary color and darker or lighter shades of the original. It also features a favorites palette, where you can store up to five colors for later use. The program has a dedicated Help section which covers the basics. By Luis Glez. 2020/09/30

 High Performance   (details) Prime   6KB/7KB Based on the game High Performance #1, written for the 48. The screen is divided into 9 rectangular parts (3*3), and each digit (1-9) corresponds to a random combination of rectangle that will be blacked out. From a white screen, you have to blacken the 9 zones. To add to the challenge, if one or more areas of the screen are already blackened from the combination of the number played, they become white again. Author unknown. 2017/05/20

 Holzer2 1.02   (details) Prime ENG   21KB/8KB This program calculates the torsional vibration of non-uniform free-free shafts by the Transfer Matrix Method according to the Holzer formulation. As a result the program delivers the natural frequencies and the corresponding normal modes together with the torsion moments distributions. The natural frequencies are determined using the bisection method for zeroes of functions calculation, so a searching interval is required. By Antonio Carlos R. Troyman. 2015/09/09

 Horizons: Distance to Horizon 0.3   (details) Prime ENG   10KB/14KB Implements simple geometric solutions for spheres, taking no account of refraction. It includes functions for distance to horizon at a given height, and inverse functions. By Stephen Lewkowicz (G1CMZ). 2019/04/22

 HP Connectivity Kit (32-bit) 2.1.14592 (2021-06-09)   (details) Prime ENG   45220KB Windows-based software for connecting to the HP Prime calculator. Now includes Apple Bonjour installer to enable mDns networking on Windows. Updated to use latest build tools and redistributable packages. By Hewlett-Packard. 2021/06/16

 HP Connectivity Kit (32-bit) Beta 2.1.14575 (2021 04 28)   (details) Prime ENG FRA ESP POR DEU ITA   45220KB Beta version of Windows-based software for connecting to the HP Prime calculator. Primary focus of this BETA release is testing the Python support and various minor fixes. By Hewlett-Packard. 2021/04/28

 HP Connectivity Kit (64-bit) 2.1.14596 (2021-10-01)   (details) Prime ENG   53632KB Windows-based software for connecting to the HP Prime calculator. Now delivered as a 64-bit version by default. Now includes Apple Bonjour installer to enable mDns networking on Windows. Updated to use latest build tools and redistributable packages. By Hewlett-Packard. 2021/10/01

 HP Connectivity Kit (64-bit) Beta 2.1.14575 (2021 04 28)   (details) Prime ENG FRA ESP POR DEU ITA   53836KB Beta version of Windows-based software for connecting to the HP Prime calculator. Primary focus of this BETA release is testing the Python support and various minor fixes. By Hewlett-Packard. 2021/04/28

 HP Connectivity Kit for MacOS 2.1.14425 (2020-01-16)   (details) Prime ENG   26155KB MacOS-based software for connecting to the HP Prime calculator. Uses built in networking to enable mDns discovery. Updated to use latest build tools and redistributable packages. By Hewlett-Packard. 2020/01/16

 HP Connectivity Kit for macOS Beta 2.1.14341 (2019 11 20)   (details) Prime ENG FRA ESP POR DEU ITA   26128KB Beta version of macOS-based software for connecting to the HP Prime calculator. Primary focus of this BETA release is upgrading the underlying build tools. As such, there are few end user noticeable changes included. The goal here is to ensure that everything is "working just as before" to make sure that no problems have been introduced as a result of said tool change. By Hewlett-Packard. 2019/11/20

 HP Prime Algebra Workshop Materials   (details) Prime ENG   793KB A comprehensive 21-page PDF introducing teachers of Algebra 1 and Algebra 2 to using the Prime and the Prime Wireless Network, following the themes of the power of visualization and looking for patterns. Includes identity graphing, systems of linear equations, infinite series, powers of a binomial, the Sierpinski Triangle, and solving trigonometric equations. By Hewlett-Packard. 2017/05/02

 HP Prime AP Calculus Summer Institute   (details) Prime ENG   1435KB A comprehensive 65-page PDF explaining how to best use the Prime in an AP Calculus class. Includes lots of screenshots and detailed step-by-step directions. By Hewlett-Packard. 2017/05/02

 HP Prime AP Statistics Summer Institute   (details) Prime ENG   2546KB A comprehensive 64-page PDF explaining how to best use the Prime in an AP Statistics class. Includes lots of screenshots and detailed step-by-step directions. By Hewlett-Packard. 2017/05/02

 HP Prime Datasheet   (details) Prime ENG   404KB Promotional two-page data sheet advertising the Prime. By Hewlett-Packard. 2017/04/30

 HP Prime Datasheet (German)   (details) Prime DEU   205KB Promotional two-page data sheet, translated into German, advertising the Prime. By Hewlett-Packard. 2017/04/30

 HP Prime Exercises   (details) Prime ENG   4268KB About 50 different exercises totaling 127 pages teaching how to do common tasks on the Prime. In PDF format. By Mickaël Nicotera and Moravia Education. 2017/04/30

 HP Prime Font   (details) Prime   95KB TrueType font for the keys of the HP Prime, useful for making documentation. By Hewlett-Packard. 2014/10/18

 HP Prime Font for LaTeX   (details) Prime ENG   73KB Font for the keys of the HP Prime, useful for making documentation, for use with TeX/LaTeX, including a configuration script and an example. By Hewlett-Packard and Han Duong (HPSolo). 2017/03/07

 HP Prime G1 Firmware 2.1.14603 (2021-12-02)   (details) Prime ENG FRA ESP POR DEU   10151KB Firmware update file for the HP Prime running G1 hardware (revision A or C). Updates CAS, updates the programming environment, adds the Python language, adds intelligent math, and makes changes for the Netherlands. By Hewlett-Packard. 2021/12/31

 HP Prime G1 Firmware Beta 2.1.14575 (2021 04 28)   (details) Prime ENG FRA ESP POR DEU   10151KB Beta version of the firmware update file for the HP Prime calculator with G1 (revision A or C) hardware. Primary focus of this BETA release is testing the Python support and various minor fixes. Extract to C:\Users\{username}\Documents\HP Connectivity Kit\Firmware\PrimeG1 to install. By Hewlett-Packard. 2021/04/28

 HP Prime G2 Firmware 2.1.14603 (2021-12-02)   (details) Prime ENG FRA ESP POR DEU   9990KB Firmware update file for the HP Prime running G2 hardware. Updates CAS, updates the programming environment, adds the Python language, adds intelligent math, and makes changes for the Netherlands. By Hewlett-Packard. 2021/12/31

 HP Prime G2 Firmware Beta 2.1.14575 (2021 04 28)   (details) Prime ENG FRA ESP POR DEU ITA   9992KB Beta version of the firmware update file for the HP Prime calculator with G2 (revision D) hardware. Primary focus of this BETA release is testing the Python support and various minor fixes. Extract to C:\Users\{username}\Documents\HP Connectivity Kit\Firmware\PrimeG2 to install. By Hewlett-Packard. 2021/04/28

 HP Prime G2 Inside Pics   (details) Prime   6877KB Three very high resolution photographs of the circuit board inside the HP Prime G2 model. By Dante Aroní C.. 2019/07/20

 HP Prime Help Text   (details) Prime ENG   367KB Full extract of the English-language help text built into the HP Prime. In XML format. By Hewlett-Packard. 2021/05/23

 HP Prime Lite Virtual Calculator Emulator for Android 2.1.14346   (details) Prime ENG   49641KB Emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for Android. Lets you do everything the calculator does, but with the full control of your keyboard and mouse and taking full advantage of your mobile device's computing power. This is the "Lite" (free) version, which is limited in its abilities compared to the full (paid) version. By Hewlett-Packard. 2021/04/10

 HP Prime Quick Start Guide   (details) Prime ENG   1706KB HP Prime Graphing Calculator Quick Start Guide, the 52-page PDF full document included in printed form with the calculator. By Hewlett-Packard. 2017/04/27

 HP Prime Quick Start Guide (German)   (details) Prime DEU   2000KB HP Prime Graphing Calculator Quick Start Guide translated into German, the 81-page PDF full document included in printed form with the calculator. By Hewlett-Packard. 2017/04/30

 HP Prime Skins 6.0   (details) Prime ENG   4863KB New set of skins for the Prime emulator, designed for Firmware 11226. Includes two horizontal versions and one vertical version, each with five color variations, plus an additional vertical version. By Dante Camargo. 2018/12/27

 HP Prime Technology Corners   (details) Prime ENG   5522KB A set of PDFs explaining how to do various statistical operations on the Prime. Aimed at AP Statistics students. By Hewlett-Packard. 2017/04/30

 HP Prime Toolbox 1.0   (details) Prime ENG DEU   482KB/840KB A simple toolbox for the Prime, with a screen test and other functions. By Noah Wagner and others. 2014/10/18

 HP Prime Tutoriaux   (details) Prime FRA   6250KB Comprehensive set of tutorials for learning to use the HP prime. 187 page PDF document. By Mickaël Nicotera. 2017/04/30

 HP Prime User Guide 3rd Edition   (details) Prime ENG   7098KB HP Prime Graphing Calculator User Guide, the 761-page PDF full document included on the CD with the calculator. By Hewlett-Packard. 2018/09/10

 HP Prime User Guide (German)   (details) Prime DEU   5570KB HP Prime Graphing Calculator User Guide translated into German, the 694-page PDF full document included on the CD with the calculator By Hewlett-Packard. 2017/04/30

 HP Prime Virtual Calculator Emulator (32-bit) 2.1.14592 (2021-06-09)   (details) Prime ENG FRA ESP POR DEU   56820KB Emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for Windows. Lets you do everything the calculator does, but with the full control of your keyboard and mouse and taking full advantage of your PC's computing power. Now includes Apple Bonjour installer to enable mDns networking on Windows. Updated to use latest build tools and redistributable packages. By Hewlett-Packard. 2021/06/16

 HP Prime Virtual Calculator Emulator (32-bit) Beta 2.1.14575 (2021 04 28)   (details) Prime ENG FRA ESP POR DEU   56828KB Beta version of the emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for Windows. Lets you do everything the calculator does, but with the full control of your keyboard and mouse and taking full advantage of your PC's computing power. Primary focus of this BETA release is testing the Python support and various minor fixes. By Hewlett-Packard. 2021/04/28

 HP Prime Virtual Calculator Emulator (64-bit) 2.1.14596 (2021-10-01)   (details) Prime ENG FRA ESP POR DEU   65308KB Emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for Windows. Lets you do everything the calculator does, but with the full control of your keyboard and mouse and taking full advantage of your PC's computing power. Now delivered as a 64-bit version by default. Now includes Apple Bonjour installer to enable mDns networking on Windows. Updated to use latest build tools and redistributable packages. By Hewlett-Packard. 2021/10/01

 HP Prime Virtual Calculator Emulator (64-bit) Beta 2.1.14575 (2021 04 28)   (details) Prime ENG FRA ESP POR DEU ITA   65532KB Beta version of the emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for Windows. Lets you do everything the calculator does, but with the full control of your keyboard and mouse and taking full advantage of your PC's computing power. Primary focus of this BETA release is testing the Python support and various minor fixes. By Hewlett-Packard. 2021/04/28

 HP Prime Virtual Calculator Emulator for Linux (32-bit) Beta 2.1.14290 (2019 10 23)   (details) Prime ENG FRA ESP POR DEU ITA   52821KB Beta version of the technical preview of an emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for Linux. Lets you do everything the calculator does, but with the full control of your keyboard and mouse and taking full advantage of your PC's computing power. This is a technical preview and does not indicate a supported Linux release will be forthcoming. Built using Ubuntu 14.04 and packaged as an x86 appimage. Updated CAS to latest 1.5 release. Primary focus of this BETA release is upgrading the underlying build tools. As such, there are few end user noticeable changes included. The goal here is to ensure that everything is "working just as before" to make sure that no problems have been introduced as a result of said tool change. By Hewlett-Packard. 2019/10/23

 HP Prime Virtual Calculator Emulator for Linux (64-bit) Beta 2.1.14290 (2019 10 23)   (details) Prime ENG FRA ESP POR DEU ITA   51911KB Beta version of the technical preview of an emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for Linux. Lets you do everything the calculator does, but with the full control of your keyboard and mouse and taking full advantage of your PC's computing power. This is a technical preview and does not indicate a supported Linux release will be forthcoming. Built using Ubuntu 14.04 and packaged as an x64 appimage. Updated CAS to latest 1.5 release. Primary focus of this BETA release is upgrading the underlying build tools. As such, there are few end user noticeable changes included. The goal here is to ensure that everything is "working just as before" to make sure that no problems have been introduced as a result of said tool change. By Hewlett-Packard. 2019/10/23

 HP Prime Virtual Calculator Emulator for MacOS Beta 2.1.14341 (2019 11 20)   (details) Prime ENG FRA ESP POR DEU   38024KB Beta version of the emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for MacOS. Updated CAS to latest 1.5 release. Primary focus of this BETA release is upgrading the underlying build tools. As such, there are few end user noticeable changes included. The goal here is to ensure that everything is "working just as before" to make sure that no problems have been introduced as a result of said tool change. By Hewlett-Packard. 2019/11/20

 HP Prime Virtual Calculator for MacOS 2.1.14425 (2020-01-16)   (details) Prime ENG   38065KB Emulator (technically a simulator, since it is a native PC program) of the HP Prime Graphing Calculator for MacOS. Updated to use latest build tools and redistributable packages. By Hewlett-Packard. 2020/01/16

 HP-Prime CAS+ 0.0.6c   (details) Prime ENG ESP   215KB/10KB Library functions for the symbolic mode (CAS) of the Prime. By Jaime Fernando Meza Meza (CompSystems). 2014/10/18

 hpp41   (details) Prime ENG   70KB/136KB Proof of concept of an HP-41C emulator, but I can't figure out how to make it work. By Olivier De Smet. 2019/03/11

 Humedad natural de los Suelos AASHTO T-93 1.0   (details) Prime ESP   4KB/15KB Determines moisture content of soil and rocks by weight following AASHTO T-93 ASTM 2216-80. By Jose Edgar Campos Cespedes. 2021/12/31

 Hydrostatic Test for Pipes 3.0   (details) Prime ENG   3KB/11KB Performs piping engineering (long ducts) calculations for the hydrostatic testing phase: the volume of water required to fill the test section (gal_US), the volume of water required for the pressure test (gal_US), and the amount of pressure change for a change in test water temperature (psig/ºF). By Antonio Ricardo Bozolla. 2021/07/30

 Hyperbolic CAS Transformations   (details) Prime ENG   6KB/14KB CAS transformations with expressions involving hyperbolic functions, mainly sinh (hyperbolic sine) and cosh (hyperbolic cosine). By Eddie W. Shore. 2019/12/31

 I Wanna 4.14 Beta   (details) Prime ENG   144KB/74-554KB Implementation of "I Wanna Be The Guy". The parameters and graphics are almost the same as the original Windows game. However, many functions such as platforms are not included for performance reasons, and the collision contact is also not as well implemented as the original one. By Chong Wang. 2017/07/04

 IB Diploma Programme Exam Mode   (details) Prime ENG   756KB/2KB Sets the Prime into the appropriate exam mode for International Baccalaureate (IB) exam use. By Moravia Education. 2017/04/30

 Iconmaster Tetris   (details) Prime ENG   7KB/23KB Another simple Tetris implementation. Author unknown. 2017/02/16

 IFS Prime 0.2   (details) Prime ENG   142KB/47KB Creates Iterated Function System (IFS) Fractals with touch zoom in/out. There are 16 built-in definitions, plus users can store custom definitions in L0 to generate their own images. By Wes Loewer. 2013/12/22

 Imaginary Error Function   (details) Prime ENG   2KB/1KB Shows how to implement the imaginary error function, erfi() and a function called "erfw", or w(z) that handles every complex number, similar to the built-in error function, erf() and the complementary error function, erfc(). By Salvo Micciché (salvomic). 2017/11/02

 IMC - Indice de massa corporal 0.91   (details) Prime POR   90KB/296KB Sample program to calculate the BMI (Body mass index), showing figures of the characters of the Simpsons for each weight range. By João Leonardo Rozsas. 2015/07/26

 IMG2PRIME   (details) Prime ENG   400KB Converts images to HP Prime's Basic image format (A1R5G5B5). For Windows, but PureBasic source code is included for compiling on other platforms. Author unknown. 2021/05/23

 Impedance Calculator   (details) Prime ENG   3KB/13KB This program is aimed at Basic Electronics, and uses a friendly interface to facilitate data entry. Use the Navigator key to select your option like Series, Parallel, or tap the box beside it twice to check the box. Tp the Freq box, enter a frequency (for example, 12000) then tap box R, RC, RL, LC or RLC twice followed by [OK]. For example, for RLC, enter your values R=200, L=.002, C=2.5 EEX -6, and [OK], and the result will display XL, XC, Zr (Z in Rect.), Zp (Z in Polar), Yr (Y in Rect.) and Yp (Y in Polar). By Bernard Michaud. 2016/08/06

 Impedance of an RLC Circuit   (details) Prime ENG   4KB/3-6KB Two functions to calculate the total impedance of the circuit, and its magnitude in ohms, the phase angle in a circuit in degrees, and the current of the series in amps, one for series circuits and the other for parallel circuits. By Eddie W. Shore. 2015/08/23

 Increase in the Vol. Flow Rate of a Long Duct 5.0   (details) Prime ENG   8KB/8KB Calculates the increase in the volumetric flow rate of a long duct using parallel piping (only for incompressible flow). By Antonio Ricardo Bozolla. 2021/09/12

 inMeter 2.0   (details) Prime ENG   6KB/26KB Type in a numerical value and change the area units with various conversions with units that end with "meter". Inspired by Bernard Michaud's "Power of Ten Graphical". By Roman Grasmik. 2020/06/06

 Interpolacion 1.0   (details) Prime ESP   2KB/5KB Does single and double interpolation. By Alvaro De León Glz. 2017/02/10

 Interpolator 1.0   (details) Prime ENG   360KB/3KB Helps you interpolate or extrapolate values using the the equation of the line passing through two different points. By Marco Antonio Rivera Villacorta. 2017/02/10

 Invader   (details) Prime ENG   14KB/43KB The classic Space Invaders game. Shoot the aliens before they shoot you. Author unknown. 2014/01/09

 Invader 3.1.4   (details) Prime ENG   22KB/46KB Clone of the famous game Space Invaders, where you must shoot the aliens before they shoot you. Also includes a level editor and a sample level. By Chong Wang. 2017/06/12

 IP Calculator 0.3   (details) Prime ENG   3KB/8KB A simple IP calculator. By Massimo A. Santin. 2014/10/18

 Irregular Areas   (details) Prime ENG   3KB/30KB Given X and Y coordinate points of a closed area, the irregular polygon Area and C.G. are calculated. As with all of the author's spreadsheets, the blue text cells are the data input cells and the red text cells are the calculated output cells. By Jim B. Williams. 2020/01/16

 Itema 1.01   (details) Prime ESP   4KB/6KB Changes the theme of the calculator. By Carlos Campos Guerra. 2017/02/21

 Jacobi and Gauss-Seidel 1.2   (details) Prime ENG   243KB/5KB Solves linear systems using the Jacobi and Gauss-Seidel Iterative Techniques. It also calculates the spectral radius of the iteration matrix. By Jhonatan Peretz. 2019/02/27

 Jacobi Elliptic Function   (details) Prime ENG   3KB/2KB Given Jacobi_fn(φ, m), where φ is the amplitude (φ=ASIN(x), where x is upper bound of Elliptic integral 1st kind expressed in other canonical form; the complete form has 0<=x<=1 or 0<=φ<=π/2); m=k^2 is the square of the eccentricity (0<=k<=1), this program returns a matrix where the first row present u (elliptic integral 1st kind in the sine integral –with φ– form), φ, m and the second row sn (amplitude sine), cn (amplitude cosine) and dn (delta amplitude). By Salvo Micciché (salvomic). 2017/11/02

 Jacobi Elliptic Functions   (details) Prime ENG   87KB/2KB Jacobian Elliptic Functions are a set of twelve functions denoted by XY(U, K) where X and Y stands of letters c, s, n, and d. This program works with three common Jacobi Elliptic Functions: Sine Amplitude: sn(u,k), Cosine Amplitude: cn(u,k), Delta Amplitude: dn(u,k). By Eddie W. Shore. 2020/04/11

 Jacobian   (details) Prime ENG   3KB/2KB CAS program that calculates the Jacobian of a matrix. Also can evaluate it at a certain point. By Salvo Micciché (salvomic) and Arno Kizina. 2018/04/09

 Jeu du nombre mystère (plus ou moins)   (details) Prime FRA   1KB/1KB Number guessing game. By Mickaël Nicotera. 2013/10/05

 Joe's Prime Pix   (details) Prime ENG   14286KB/117+KB A collection of 144 colorful pictures to load onto your Prime to show off its power to your friends! By Joseph K. Horn. 2014/01/11

 John Conway's Game of Life   (details) Prime ENG   18KB/8KB Another implementation of the Game of Life. Presently there are three pre-canned starting patterns and the app only renders the first 50 generations but it is a start.. By Brian Tabone. 2020/12/30

 JPL 1.00.004   (details) Prime ENG   16KB/166KB Fly a rocket and try to go through as many checkpoints as possible. The longer you survive, the more points you get. A rough port of a TI-84 Plus CE game. Author unknown. 2019/02/27

 Julia 1.0   (details) Prime   3KB/5KB Inspired by the Mandelbrot generator, this has been modified to display the Julia set. By Wolfgang Weber. 2014/10/18

 Julian Date Number/Gregorian Calendar Date Conversions   (details) Prime ENG   4KB/3KB Converts between Julian date numbers and Gregorian calendar dates, without using the built-in functions, to show how to do it manually. By Eddie W. Shore. 2019/01/20

 Keystroke Programming Simulator Beta   (details) Prime ENG   564KB/25KB Contains two programs: editmacro and runmacro. They bring the powerful keystroke RPN (Reverse Polish Notation) programming to the HP Prime. If you are familiar with the traditional HP programmable calculators (HP 65, 67, 12C, 15C, 35S, and a whole lot more), you will feel at home using this program package. By Eddie W. Shore. 2015/08/15

 KeyTouch_Alpha 1.0   (details) Prime ENG   154KB/72KB A touchscreen keypad with support for alphabetic, numeric, and special characters. Responds to calculator color theme settings and language settings. When set to German, French, Spanish or Portuguese, a long-press on certain keys will reveal accent characters. By Jacob Wall. 2019/12/31

 KeyTouch_Num 1.0   (details) Prime ENG   17KB/38KB A numeric touchscreen keypad. By Jacob Wall. 2019/12/31

 Kinematics 1.0   (details) Prime ENG   367KB/1KB A Solve library for solving Kinematics problems. It contains the four main equations. By Michael Carey. 2014/10/18

 Kinematics Functions for Robotics   (details) Prime ENG   5KB/8KB Some functions that can be pretty useful for someone studying Robotics, particularly Robot kinematics. Includes a tan inverse function that takes into account the quadrant, a function to return a 4x4 translation matrix x units in the x direction, y units in the y direction, and z units in the z direction, and a function to return a 4x4 rotation matrix for a body rotated by an angle "ang" about the axis "ax". By Hamorabi. 2019/12/29

 Knife 6.1   (details) Prime ENG   11KB/33KB Similar to Fruit Ninja. Use your mouse to operate. Red circles are bombs, so you should avoid cutting them. By Chong Wang. 2017/06/12

 Ladder 1.1   (details) Prime ENG   178KB/5KB This program will solve 2, 3, 4 Loop AC and DC circuits with ladder networks. It makes use of matrix M1 and M2 to facilitate entry of real and complex numbers. By Bernard Michaud. 2016/08/06

 Lagrange Interpolation 1.1   (details) Prime ENG   2KB/3KB Returns the interpolating Lagrange polynomial of minimum degree k for a set of points {x0, x1, …, xn}, {y0, y1, …, yn}, where 1 <= n-1 and n = 2, and depicts the plot of the function. By Claus Martin Dachselt. 2018/05/22

 Lambert W Function   (details) Prime ENG   17KB/2KB CAS program which uses fsolve to calculate the Lambert function. By Steve Tuc. 2020/06/06

 Lanceur de programmes   (details) Prime ENG FRA   5KB/7KB Makes it easy to launch your favorite programs by registering them in a list and proposing them in the form of a menu. Author unknown. 2018/02/01

 Landlord 2.1   (details) Prime ENG   17KB/57KB Card game of Landlord. By Chong Wang. 2017/06/12

 Last Digit Composite   (details) 38 Prime ENG   2KB/1KB Inserts symbolics in the Sequence App to produce the sequence of numbers having right-most digit composite. This is A262389. By Gerald Hillier and Didier Lachieze. 2017/09/20

 LCalculus 0.2   (details) Prime ENG   83KB/14KB Lambda Calculus expression evaluator based on the Spreadsheet app. Use the spreadsheet as a dictionary of lambda expressions, each named with an ID. Perform evaluations by specifying 2 or 3 IDs to be applied to each other. This version uses De Brujin indices instead of normal notation. The next version will use De Brujin indices behind-the-scenes. Various expressions are included. Church Numerals are recognized automatically. This version is also limited to performing applications with 2 or 3 terms; a future version will support free-form entry of terms (using ID, not lambda expressions) for evaluation. By Brian L. O'Dell. 2014/10/18

 Leap Year Test   (details) Prime ENG   2KB/1KB Tests whether a year is a leap year. By Eddie W. Shore. 2017/10/22

 Least Squares Regression 1.0   (details) Prime ENG   200KB/5KB Allows you to perform Polynomial Regression and Multiple Linear Regression using the Least Squares technique. By Jhonatan Peretz. 2019/01/17

 Led_Resistor 1.0   (details) Prime ENG POR   48KB/4KB Calculates the value of a resistor R to power an LED. Data entered are the voltage V of the power supply you intend to use (for example, 12 V), the forward voltage Vf of the LED (for example, 3.3 V), and the forward current If of the LED (for example, 0.02 A or 20 mA). In this case, the program will return RC5 ohms. The next commercial value is 470 ohms. By Paulo Sergio Castro de Souza. 2020/07/05

 Length of a Loan with a Certain Payment   (details) Prime ENG   2KB/2KB Calculates how many payments are required to finish a loan, given a certain annual interest rate and payment. Payments are assumed to be monthly, and end of period. The program will also return the last payment. Due to the rounding in the financial algorithms, the last payment is an approximate (unless the interest rate is 0%). By Eddie W. Shore. 2018/04/03

 LibAssoc 0.801   (details) Prime ENG   6KB/11KB Powerful list processing tool, which adds the concept of associative lists, where you can store values based on names rather than just numbers. Requires libList. By primer. 2017/09/20

 libhpcalcs 0.0.1   (details) Prime ENG FRA   1561KB FLOSS third-party Prime connectivity kit aimed at Windows, Linux and MacOS X (and possibly FreeBSD and derivatives as well). Currently can do the following from a command-line interface: sending files; receiving files; receiving backups; receiving screenshots; getting undecoded information about the calculator, including firmware version; setting the calculator's time; triggering some form of "ready" check, or something like that; sending keypresses. By Lionel Debroux. 2013/12/28

 libList 1.0   (details) Prime ENG   4KB/6KB Collection of tools for list processing, including L_GET (get an item), L_SET (change an item), L_INS (insert an item), L_DEL (remove an item), L_MAP (call a function on each item), ARR2LST (convert vector or matrix to a list), LST2VECT (convert a simple list to a vector), and SPLIT (split a string into a list). By primer. 2017/02/11

 LibMenu 3.0   (details) Prime ENG   7KB/8KB Small library for easy menu handling. Author unknown. 2017/02/11

 Library Tutorial   (details) Prime ENG   5KB/10KB Example of how to make a library. By Bernard Michaud. 2020/04/11

 Light Spectrum   (details) Prime ENG   1KB/2KB Diagram of the spectrum of visible light. By Mickaël Nicotera. 2013/10/05

 Lights Out   (details) Prime ENG   8KB/41KB Game where you must turn out all the lights. By Ariel Palazzesi. 2014/01/09

 Lindenmayer Fractals   (details) Prime ENG   8KB/22KB Uses the Lindenmayer System to build fractals on screen, with 28 Lindenmayer fractals. May only work with older ROM versions. By Patrice Torchet. 2014/10/19

 Line Integral and Curvilinear Integral   (details) Prime ENG   3KB/1KB Two little CAS programs to calculate line integral (vector functions) and curvilinear integral (scalar function). These programs work with 2 or 3 components (parametric expression: [r(t), r(t), r(t)] or [r(t), r(t)]). By Salvo Micciché (salvomic). 2015/08/20

 Linear Exponential Combination Fit   (details) Prime ENG   100KB/2KB Attempts to fit bivariate data to the curve y = a + b * x + c * e^x. The LSQ (least square) function is used. The output is a list of three matrices. By Eddie W. Shore. 2020/12/30

 Linear Solver+   (details) Prime ENG   134KB/3KB Uses RREF to solve linear equations, supporting both real and complex numbers. It can also solve larger than 4x4, but the interface is less friendly for this since larger systems are used less frequently in electronics circuits, which this program was designed for. By Bernard Michaud. 2016/08/04

 Linear Solver+ App   (details) Prime ENG   4KB/13KB Linear solver app similar to the LSX program, in that it can also solve Complex Linear Equations in 2x2 and 3x3. Useful for those in the Electrical/Electronics field. By Bernard Michaud. 2016/08/06

 Lines and Circles Geometry   (details) Prime ENG   4KB/28KB Intersection and tangent points are determined for lines and circles. Also, circle center and radius are determined for three points. The row number for each type of problem is shown at the top of the spreadsheet. As with all of the author's spreadsheets, the blue text cells are the data input cells and the red text cells are the calculated output cells. By Jim B. Williams. 2020/01/16

 List API 1.5   (details) Prime ENG   20KB/53KB A few list handling routines. The aim was to provide many of the list primitives listed on Wikipedia, so as to enable common names to be used across platforms. By Stephen Lewkowicz (G1CMZ). 2018/10/13

 Lock Screen 2.3   (details) Prime ENG   6KB/16KB Simulates a lock screen where you must enter a pattern to unlock, similar to what Android has. By Chong Wang. 2017/06/12

 Locus Curve 1.1   (details) Prime ENG   2KB/2KB Calculates from given set of functions the curve (s) through max and min points or through turning points. By Arno Kizina. 2018/02/27

 LSX Linear Solver   (details) Prime ENG   3KB/10KB Mimics the Linear Solver APP, however it can also solve Complex Linear Equations in 2x2 and 3x3. Useful for those in the Electrical/Electronics field. By Bernard Michaud. 2016/08/06

 Lunar Astronomy 1.0   (details) Prime ENG   6KB/14KB Illustrates the Moon, the Earth, the Moon's orbit around the Earth, and animates the light-distance of the Moon from the Earth. By Stephen Lewkowicz (G1CMZ). 2019/07/20

 Lunar Lander   (details) Prime ENG   1941KB/19KB The lunar lander is 500 ft above the moon with a downward velocity of 50 ft/s and has 120 units of fuel. The height, velocity, and remaining fuel are displayed. The program will pause for up to 60 seconds. Enter the number of units of fuel you wish to burn during the next second, then press the Enter key. The new height, velocity and remaining fuel are displayed. The maximum amount of fuel you can burn at one time is 30 units. Adapted from the Rocket program in Basic Computer Games, MicroComputer Edition, 1978 by David H. Ahl. By Gene Shiomoto. 2017/02/11

 Lunar Lander 2   (details) Prime ENG   336KB/28KB The lunar lander is 120 miles above the moon with a downward velocity of 3600 mph and has 16,000 pounds of fuel. The time, height, velocity, and remaining fuel are displayed. Enter the number of pounds of fuel (0, or between 8 and 200) you wish to burn per second during the next 10 seconds, then press the Enter key. The new height, velocity and remaining fuel are displayed, as well as a graph of the descent. The maximum amount of fuel you can burn at one time is 30 units. Adapted from Jim Storer's 1969 Lunar Lander simulator program that was written in FOCAL-69. By Gene Shiomoto. 2021/09/25

 Machine de Galton   (details) Prime ENG   1KB/2KB A bean machine to demonstrate the central limit theorem. By Mickaël Nicotera. 2013/12/22

 Magic Squares   (details) Prime ENG   3KB/3KB Generates random 3 x 3 non-normal magic squares. The sum of each row, column, and diagonal are given. A magic square is a square of integers where each row, column, and diagonal have the same sum. By Eddie W. Shore. 2017/10/22

 Magic Tower   (details) Prime ENG   413KB/620KB An adventure game where you must explore a tower, fight enemies, collect keys, and buy powerups. By Chong Wang. 2017/06/12

 Magic Tower 50   (details) Prime ENG   548KB/354KB The classic Chinese adventure game Magic Tower, where you must explore a 50-level tower, fight enemies, collect keys, and buy powerups. For a calculator game, this game is very intricate, challenging and fun. Well worth the time to defeat Zeno! Includes both the original version, with most text in Chinese, and an English translated version. Unknown original author and Chong Wang. 2021/06/16

 Magnifying Glass 0.3   (details) Prime ENG   44KB/3KB Shows a magnifying glass which help you to see individual pixels better. You can start it using Shift-USER M in every program. Contains full source code with detailed comments, which demonstrates mask operations with GROBs (DIMGROB_P, GROBW_P, GROB_H, BLIT_P, loading of PNGs to G1-G9). Author unknown. 2015/10/24

 Mandelbrot   (details) Prime ENG   47KB/5KB This is a very basic and straight forward approach to programming the Mandelbrot set on the Prime. It just shows how programming and using complex numbers/variables in a program work on the Prime. It is in no way optimized for speed, neither mathematically nor in terms of implementation. Also, it's not a Prime App (thus not using the Symb/Plot/Num and their Setup keys) and has no interactivity (like zooming) at all. The area of the Mandelbrot set is defined by setting the corresponding variables in the source code. Take it as a starting point for your further explorations, be it in Prime programming or in math. And feel free to expand it and maybe make an App out of it with interactivity. By Stefan Wolfrum. 2013/12/22

 Mandelbrot 1.2   (details) Prime ENG   51KB/15KB A small collection of three programs made for drawing parts of the Mandelbrot fractal on the calculator screen in either black/white, grayscale or color. The center point (focus) and zoom level, among other settings, can be changed by the user in the code. An image can take a short while to draw, but the end result will be worth it in many cases. Includes two sets of example coordinates. By Simon Bryntse. 2022/07/31

 Mandelbrot Explorer 0.9   (details) Prime ENG   34KB/39KB Fast explorer of the Mandelbrot fractal written in Python. Lets you change color scheme and zoom in. By Günter Schink. 2022/02/27

 Mastermind 1.3   (details) Prime ENG   89KB/17KB Well-done implementation of the famous code-breaking game. Each code peg can be one of 6 colors or vacant if you choose that option. When you submit your guess, black and white key pegs will provide feedback. By Tony Gallo. 2020/04/11

 MAT 1105 FNI 1.0   (details) Prime ESP   16KB/238KB Numeric math application with functions for bisection, fixed point, Newton-Raphson, and more. By Rocha Caceres Santiago. 2016/08/02

 Mathematical Pixel Art   (details) Prime ENG   31KB/2-13KB Generates some images mathematically, including Blue Diamond, Lake, Tree Trunk, and Yin Yang on the Prime, as well as Cat, Dog, Pisces, and Question Block on the 42S. By Eddie W. Shore. 2019/02/27

 Matrices Built from Shifted Elements   (details) Prime ENG   64KB/4KB Programs to create an n by n matrix based on the elements of a given list. Each row has each of the elements rotated one element, either left (LSM) or right (RSM). By Eddie W. Shore. 2019/03/11

 Matrices: Adjoint and Cofactors   (details) Prime ENG   2KB/1KB A little program to get the adjoint matrix and cofactor matrix of a given matrix. By Salvo Micciché (salvomic). 2015/08/20

 Matrix Calculation of Structures   (details) Prime ENG   1336KB/33-142KB Set of four spreadsheets to do calculations on Articulated Structures, Reticulated Structures with rigid nodes, Structures Mixed, with nodes rigid and articulated, and Gratings when the forces are applied perpendicular to the beams, such as decks. Each spreadsheet calculates the stiffness matrix of the beams, the translation and rotation matrix, and you can assembly the stiffness matrix of the structure. Author unknown. 2015/08/19

 Maximum Probability - Incomplete Gamma Law   (details) Prime ENG   4KB/3KB Calculates four calculation points and three parameters of A, γ, and β of the Incomplete Gamma Law: g(x) = 1 / (β^γ * gamma(γ)) * x^(γ - 1) * e^(x/β). By Eddie W. Shore. 2019/08/29

 Maze 3D 1.6   (details) Prime ENG   8KB/21KB A 3D game where you need to eat 3 red diamonds and then eat the cyan diamond to win. Press alpha to step forward and shift to go backward, and use the touchscreen to look around. By Chong Wang. 2017/06/10

 Means API   (details) Prime ENG   9KB/22KB A collection of common means and other numerical list routines. By Stephen Lewkowicz (G1CMZ). 2018/01/07

 Means: Geometric, Weighted, Harmonic   (details) Prime ENG   2KB/2KB A simple program to calculate some means, given lists of values. Calculates the geometric mean of {list1} (where all numbers in the list must be > 0), the weighted mean of {list1} with weights {wlist}, and the harmonic mean of {list1} (where all numbers must be > 0). By Salvo Micciché (salvomic). 2017/12/28

 Mechanical Engineering Programs   (details) Prime ENG   3KB/1KB A set of mechanical engineering programs to calculate the cross section area of a cylinder, the maximum bending moment on a cylinder at yield, the collapse pressure on a 75/80/110 KSI yield pipe, von Misses stress, yield pressure, shear area and bearing area on acme threads, gross margin when cost and price are known, price when cost and gross margin are known, and future value when present value, interest per year, and period in year are known. By Djajadi Susastra. 2015/08/20

 Memory   (details) Prime FRA   6KB/11KB A little memory game, where the numbers 1 to 9 appear on the screen and are hidden by rectangles. Author unknown. 2017/02/15

 Menu 1.0   (details) Prime ENG   7KB/21KB Displays the Program -> Edit -> Cmds tree without needing to edit a program. Adopt 'menuList' for your own custom menu; remove 'menuList' from the code when you want to use different menus in different apps. By Frank P. 2021/04/10

 Mercator Sailing   (details) Prime ENG   99KB/34KB Calculates the course direction and distance in miles given two pairs of latitude (north/south) and longitude (east/west). Author unknown. 2018/09/09

 Mercator Sailing: Course and Distance   (details) Prime ENG   3KB/2KB Calculates the course direction and distance in miles given two pairs of latitude (north/south) and longitude (east/west). Conversion to arc minutes will be required during calculation. By Eddie W. Shore. 2018/08/18

 Mersenne Twister   (details) Prime ENG   4KB/6KB An implementation of the Mersenne Twister, for random number generation. By Keith Barkley. 2017/02/11

 Métodos Numéricos H&WLabs 1.1   (details) Prime ESP   8KB/50KB Solves numeric methods. Uses the Newton-Raphson method, the fixed point method, the Newton bisection method, the secant method, and the false position method. Shows the intermediate steps and the final result. By Hebert Poma Vidal. 2016/09/11

 MICROSTRIP   (details) Prime ENG   3KB/8KB This program is used to calculate the impedance of a Surface Microstrip. For example, in the case of Z=~50 ohms, Er=4, W=1.5162 mm, T=0.035 mm, H=0.794 mm, you can enter any 4 values and solve the unknown. By Bernard Michaud. 2016/08/06

 Minehunt   (details) Prime ENG   7KB/10KB Implementation of the Minehunt game from the 48 series. By Lars Fredriksson. 2017/02/15

 MinePrime 4.0   (details) Prime ENG   131KB/1278KB A 2D Minecraft game, though still early in the development process. By Alex GT. 2017/02/15

 Minesweeper   (details) Prime ENG   18KB/50KB A fairly faithful version of the classic Minesweeper game, where you must clear all spaces without mines. By Tom Hubrecht. 2018/09/23

 Minesweeper 1.0   (details) Prime ENG   9KB/20KB Clone of the popular puzzle game found on most older versions of Windows. Drag on the touchscreen to move the cursor, press [ENTER] to left-click, and press [DEL] to right-click. By José Felten. 2021/11/24

 Minesweeper 1.4.4   (details) Prime ENG   78KB/38KB Faithful touch-based implementation of the mine hunting game. By Tony Gallo. 2018/07/29

 Minima and Maxima with Lagrange Multipliers   (details) Prime ENG   75KB/2KB Calculates the minima and maxima of a function using Lagrange Multipliers. By Hamorabi. 2019/12/31

 MIRERVB   (details) Prime FRA   2KB/3KB Shows RGB gradients to test the screen's abilities. By Xavier Andréani. 2018/10/14

 Modified Newton's Method 1.1   (details) Prime ENG   245KB/3KB CAS program that solves an equation using the Modified Newton-Raphson Iterative Technique. By Jhonatan Peretz. 2019/04/22

 Modos de Vibración   (details) Prime ESP   311KB/53KB Calculates and draws the vibration mode shapes for a lumped MDOF elastic system. By Edwin Saul. 2019/10/16

 Moments of Inertia   (details) Prime ENG   2KB/1KB Program to calculate moments of inertia, and also demonstrates the use of CHOOSE and CASE. By Eddie W. Shore. 2014/10/22

 Money Machine Game   (details) Prime ENG   3KB/4KB A simple game where the machine randomizes between \$250 to \$50,000. Press [Enter] whenever you feel lucky. By Eddie W. Shore. 2018/06/17

 Monty Hall Problem   (details) Prime ENG   3KB/4KB Simulates the famous Monty Hall program. You get to choose how many times the problem should run, the number of doors and if you want to change doors or not. It only shows the results (statistics) and you won't actually choose doors, or win a car or goats. By Artur Donda. 2017/10/23

 Moon Date   (details) Prime ENG   3KB/3KB Determines when the next start point of a desired phase of the Earth's moon will occur given a month and year. By Eddie W. Shore. 2019/02/23

 Moon Phase   (details) Prime ENG   2KB/2KB Calculates the decimal percent of the phase of the moon for a given date. By Eddie W. Shore. 2017/06/24

 Moon Phase 1.0   (details) Prime ENG ESP   603KB/2KB Calculates moon phase for a given date and then displays it adding some random speckles. Detailed instructions on how to install and use in English and Spanish. By Emiliano Llano Díaz. 2014/10/18

 MOVEM   (details) Prime ENG   10KB/10KB Simple game where the objective is to collect dollar signs (coins) to unlock the boundary at the top of the screen to allow access to the goal. Trees block your progress. Avoid the purple foes at all times, one touch and it's over! One purple foe jumps around randomly while two fly horizontal. By Eddie W. Shore. 2014/10/19

 MPINVERT   (details) Prime ENG   2KB/1KB Also known as a pseudoinverse, calculates the Moore-Penrose inverse of a matrix, denoted by A^+ (capital A with a supersubscript of a plus sign), is an inverse of matrix. Different from the "true" matrix inverse, the Moore-Penrose inverse allows for non-square matrices. Primarily, the Moore-Penrose inverses are calculated is assist in solving linear least-square equations. By Eddie W. Shore. 2015/08/20

 MSSTARS 1.0   (details) Prime ENG   6KB/15KB A curvefit model for "average" population 1 main sequence stars. User enters the star's mass, all other parameters are calculated and displayed. By David Sims. 2020/06/06

 Multi Command App   (details) Prime ENG   45KB/45KB Displays all functions in the CAS/Rewrite menu with their results in a popup menu on the CAS main screen. Additionally, it displays expand, proot (in second menu only), collect, and lncollect functions and their results. By V Volkan. 2018/10/13

 MultiColor 2.0   (details) Prime ENG   8KB/9KB Generates random colors or defined or randomly defined tone of colors by sections defined by users. You can divide the screen into something as 36*24, 4*4...with a maximum of 320*240. Please wait for updates that will allow you to touch the screen and return the displayed colors in RGB or HEX form. By Xinyang He. 2022/02/27

 Multinomial Coefficient   (details) Prime ENG   3KB/1KB Two versions of a program to calculate multinomial coefficients. The program accepts an integer for "n" (total of k) and a list with brackets {} for the list of the k (like {1,4,4,2}) and gives an integer that represents permutations in a multi set. By Salvo Micciché (salvomic). 2015/08/20

 MyTetrahedron   (details) Prime ENG   23KB/17KB Expands the build-in Demo_Tetrahedron by named axis, surrounding box, angle value and rotation vector display. You can rotate the Z axis with left/right, rotate horizontal/vertically by screen swipe, and quit with ESC. By Frank P. 2019/06/17

 Negative Buoyancy for Pipelines 7.0   (details) Prime ENG POR   3KB/7KB Program for carbon steel pipelines in a range of nominal diameters from 4 in to 32 in. Designed to calculate the thickness of the concrete coating to negative buoyancy in pipelines. By Antonio Ricardo Bozolla. 2021/09/12

 Nelder Mead Optimization   (details) Prime ENG   5KB/8KB Uses the Nelder Mead method to optimize functions with the number of dimensions only limited by memory. Nelder Mead optimization is a type of simplex routine that uses only values of the function. It is very robust and no derivates are needed. By Raimund Wildner. 2021/04/10

 Net Present Value   (details) Prime ENG   2KB/1KB Calculates Net Present Value. By Eddie W. Shore. 2014/10/22

 Newton Method for Nonlinear Systems 1.1   (details) Prime ENG   232KB/3KB CAS program which solves nonlinear systems using the Newton Method. It also calculates the Jacobian matrix of the system of equations. By Jhonatan Peretz. 2019/01/17

 Newton Raphson 2.0   (details) Prime ESP   3KB/3-9KB Numeric methods by the Newton-Raphson method. Three version, for a direct result, a step-by-step result, and a version in a table similar to Excel. By Florencio Quelca. 2018/04/09

 Newton's Method   (details) Prime ENG   3KB/1KB Uses Newton's Method to compute the root of a function f(x) using linear approximations of f(x) via tangent lines. By Han Duong (HPSolo). 2014/10/22

 Newton's Method with Strings   (details) Prime ENG   4KB/2KB A version of Newton's method where you specify a string representing f(x), along with the initial guess for the root, and the tolerance value. Thus you can solve for different functions without having to hard code these functions in the PPL code. Also includes an enhanced version. By Namir Shammas. 2018/01/07

 Nice Integer Eigenvectors   (details) Prime ENG   6KB/10KB Gives you nice integer eigenvectors for 2x2 and 3x3 matrices rather than the normalized ones given by the EIGENVV program. Author unknown. 2015/08/20

 Noise Figure and Noise Voltage   (details) Prime ENG   4KB/3KB Given system temperature (in Kelvins), the first program calculates the noise figure (in Decibels), which describes the noise performance of an amplifier. The noise figure is described as the difference between the noise output of an actual receiver to an ideal, noiseless receiver. A noiseless receiver is said to have a resistor operating at room temperature, 290 K (about 16.85°C or 62.33°F). The lower the noise figure, the better. Given the noise bandwidth (in Hertz) and the resistance (in Ω), the second program calculates the open-circuit voltage (in RMS volts). By Eddie W. Shore. 2019/01/20

 Nombres Premiers 1.1   (details) Prime FRA   29KB/12KB Determines whether a number between 0 and 10E9 is prime. Gives the prime numbers before and after that number. By Pierre Berly. 2019/03/11

 Normal Law   (details) Prime FRA   1KB/2KB Statistics program, where you enter the standard deviation and a guess. By Mickaël Nicotera. 2017/04/27

 Notepad++ HP PPL Support   (details) Prime ENG   47KB User defined language file and autocompletion (API) file for Notepad++ for the HP Prime Programming Language (HP PPL). The Connectivity Kit is sometimes awkward and not very user friendly (with no support for find/replace), making Notepad++ a much more friendly choice. These files not only add syntax highlighting but also documentation for nearly 600 functions, showing the parameter syntax and detailed descriptions as the code is typed. By Eric Rechlin and Juerg W. Buser. 2016/08/05

 Nullspace   (details) Prime ENG   3KB/4KB Calculates the nullspace of a matrix. The left nullspace can be calculated by taking the transpose of the matrix first. By Hamorabi. 2019/12/29

 Number of Triangles Puzzle   (details) Prime ENG   50KB/3KB The program calculates the number of triangles in a geometric figure. Number all the intersection points and tell the calculator the interconnected points, and it will determine how many triangles it makes. Author unknown. 2016/08/06

 Numeric Integration   (details) Prime ENG   3KB/6KB Uses a hybrid of CAS and Home-program to compute the integral of an input entered function, the borders and intervals to compute diverse numeric integrals. It can easily be extended to other formulas; the included ones are those the author sometimes needs to check hand-calculations made by his pupils. By Arno Kizina. 2017/12/28

 Numerical Integration 1.1   (details) Prime ENG   300KB/8KB Approximates the definite integral for a given function using the Newton-Cotes Formulas (Trapezoidal Rule, Simpson 1/3 Rule and Simpson 3/8 Rule) and Gauss-Legendre Quadrature. By Jhonatan Peretz. 2019/04/09

 Numerical Methods (Equations in One Variable) 1.0   (details) Prime ENG   426KB/10KB Uses numeric methods to solve an equation in the form f(x) =. The iteration table is also shown. You can choose between five different numerical methods: Fixed-Point Method, Newton-Raphson Method, Secant Method, False-Position Method and Bisection Method. By Jhonatan Peretz. 2019/08/23

 Observatories 0.001   (details) Prime ENG   6KB/12KB Attempts to parse the observatories file from the Minor Planets Centre and map their locations. By Stephen Lewkowicz (G1CMZ). 2017/02/11

 Obstruction Flowmeters 2.0   (details) Prime ENG POR   38KB/41KB Program for piping or hydraulic engineering, designed to calculate the volumetric flow through up to 3 types of flow meters by obstruction (orifice plate, nozzle and Venturi). The program calculates the Reynolds number and the flow velocity in the tube, the pressure drop, the discharge coefficient (with the exception of the Venturi meter) and the volumetric flow through the discharge orifice. Available in 3 versions: Brazilian Portuguese with SI units, English version with SI units, and English version with English units. By Antonio Ricardo Bozolla. 2021/07/30

 OE2PV 1.0   (details) Prime ENG   4KB/16KB Accepts as input the elements for a heliocentric elliptical or hyperbolic orbit, and a time of interest. The user inputs data by adjusting the values within the code. OE2PV outputs heliocentric state vectors for the object and for Earth, and it further outputs the geocentric distance, right ascension, and declination for the object. By David Sims. 2020/06/06

 OEIS A111138   (details) 49/50 38 Prime ENG   5KB/1KB Returns the Nth element of the series OEIS A111138. By Gerald Hillier and John Keith. 2019/07/20

 Open Channel Flow in a Parabolic Channel   (details) Prime ENG   383KB/16KB Calculates the normal depth of a parabolic channel in the form of y = Cx^2, where C is the x^2 coefficient or curvature coefficient. The channel depth and width or any other known depth and width must be entered to describe the curvature of the parabola. Enter any three of the four variables (flow rate, depth, slope, and n) and solve for the fourth variable. The wetted perimeter P is calculated using the exact formula per Chow as redefined by Merkley. Includes comprehensive PDF documentation. By Gene Shiomoto. 2018/04/03

 Opossum Massage Simulator 1.01   (details) Prime ENG   20KB/60KB Massage the possum to repel aliens from outer space! Inspired from some opossum massage video on Youtube. Originally released in April 2016 for the TI-84 Plus C Silver Edition, TI-Nspire CX, Windows and Android. Opossums are said to have good alien repelling capabilities, but to be able to do so they must be happy. On the eve of an alien invasion, you are thus sent the unholy task of massaging an opossum to send them back into space! By Kévin Ouellet (DJ Omnimaga). 2022/07/31

 ORBIT4 1.0   (details) Prime ENG   6KB/21KB A preliminary orbit determination code. By editing the code, the user enters position data for Earth and directional data for another object orbiting the sun at four distinct instants of observation. The program calculates the elements of the object's heliocentric orbit. By David Sims. 2020/06/06

 Orbital Elements   (details) Prime ENG   4KB/3KB Given the radius vector, velocity vector, and canonical units, produces the angular momentum vector, the node vector, inclination angle of the satellite, and longitude angle. By Eddie W. Shore. 2015/08/23

 Orthogonal Matrix Test   (details) Prime ENG   2KB/2KB Tests whether a square matrix is orthogonal, using the formula M * M^T = M^T * M = I. By Eddie W. Shore. 2017/02/11

 Parabolic Coordinates   (details) Prime ENG   3KB/3KB Converts between parabolic coordinates (μ, v, ϕ) and rectangular coordinates (x, y, z). By Eddie W. Shore. 2017/03/05

 Parabolic Cylindrical Coordinates   (details) Prime ENG   3KB/3KB Converts between parabolic cylindrical coordinates (μ, v, ϕ) and rectangular coordinates (x, y, z). By Eddie W. Shore. 2017/03/05

 Parallel Combination of Resistors 1.0   (details) Prime ENG   1KB/1KB Calculates the parallel combination of resistors. Takes as input a list of resistors and outputs the equivalent resistance. By Michael Carey. 2013/12/22

 PDQ Algorithm   (details) Prime ENG   8KB/2-5KB PDQ finds best rational approximations, with infinite precision. This means it finds the two smallest integers whose ratio is equal to some target real number plus or minus some desired tolerance. In other words, it finds the simplest fraction in any given interval. Unlike other methods, it always finds the unique best answer, and uses the infinite precision of CAS long integers. By Joseph K. Horn. 2018/03/18

 Pentaminos   (details) Prime ENG FRA ESP   17KB/99KB Tiling a Rectangle 5xN by Pentominoes. Seeks solutions (and registers in a spreadsheet), displays solutions, and rebuilds a specified solution. By Michel Déchamps. 2014/10/19

 Perfect Christmas Tree   (details) Prime FRA   2KB/2KB Performs common calculations related to putting up a Christmas tree. By Mickaël Nicotera. 2015/08/15

 Perigee and Apogee of a Conic Section   (details) Prime ENG   3KB/2KB Determines three characteristics of a conic section: the eccentricity, perigee, and apogee, given the lengths of the semi-major axis (A) and the semi-minor axis (P). By Eddie W. Shore. 2017/12/17

 Perimeter of an Ellipse   (details) Prime ENG   3KB/1-2KB Uses a converging iteration technique ported from a QBASIC program by Gérard P. Michon to calculate the perimeter of an ellipse. Also includes a version using integration that is slightly more accurate. By Joseph K. Horn and Wes Loewer. 2016/08/06

 Periodic Table   (details) Prime ENG FRA   83KB/22KB A simple keyboard-controlled periodic table of the elements. PDF documentation. By Mickaël Nicotera. 2013/12/22

 PGCD étendu   (details) Prime FRA   1KB/1KB Extended Euclidean algorithm program. By Mickaël Nicotera. 2013/10/05

 Physical Constants   (details) Prime FRA   1KB/2KB Library of physical constants. By Mickaël Nicotera. 2013/10/05

 Physics and Electronics   (details) Prime POR   324KB/721KB A large menu driven system with many formulas and diagrams for physics and electronics, including Karnaugh maps, resistor calculations, Zener diodes, and more. Author unknown. 2017/02/11

 Pipe Calculator for Partial Flow 3h   (details) Prime ENG   912KB/736KB This pipe calculator program calculates the unknown variable for Manning, Colebrook-White, Continuity (Q=), Area, Critical Flow, and shear stress equations for a circular pipe flowing partially full. The program uses the calculator’s unit functions, so the user must select the unit of the solve variable. The results are displayed on the calculator’s print terminal. To switch between programs, select the new program from the Menu on the INPUT screen and press the OK tab. To rerun the same program, press the Esc key to exit the terminal, and press the Enter key to rerun the program. Includes PDF documentation. By Gene Shiomoto. 2022/08/31

 Pipe Flow 2019-07-30   (details) Prime ENG   961KB/132KB Calculate N, Q, S, Dia, or y/D for partially full pipes using Manning's Equation in English or Metric units. The program also computes the corresponding velocity. The depth of flow ratio, y/D, is solved by numerical analysis using the secant method. Where there are two solutions, only the first solution between 0 < y/D < 0.9381 is reported. When solving for the diameter, the calculated diameter and diameter rounded to a standard size are given. This program is a conversion of an old FORTRAN program that was printed in Schaum’s Solved Problems in Fluid Mechanics & Hydraulics, 1989. By Gene Shiomoto. 2019/08/29

 Pipeline Leakage Time 5.0   (details) Prime ENG POR   9KB/18-22KB Program for the piping area, designed to calculate the volume leaked and the leak time through a crack, due to the depressurization of the pipeline. Only for incompressible flow in long carbon steel ducts with nominal diameters between 4 and 32 in. It has the option to choose up to 7 types of fluid (water, salt water, oil, ethanol, gasoline, kerosene and crude oil). In the raw oil option, it has the choice of an API degree from 10 to 44, and a temperature from 41ºF to 149ºF. By Antonio Ricardo Bozolla. 2021/06/16

 Piping Loop   (details) Prime ITA   3KB/5KB Useful short program to calculate piping loop dimension to reduce stress in the pipeline. Here you can find the base version; eventually there will be a more user-friendly version. By Danilo Ducci. 2020/09/30

 Piping Thermal Expansion   (details) Prime ITA   3KB/6KB Thermal expansion is a simple program to calculate the pipe expansion due thermal action. This program include also the force and pressure on the pipe supports. Very useful during the stress analysis calculation and during piping design. By Danilo Ducci. 2020/09/30

 Pitch vs Angle   (details) Prime ENG   3KB/2KB Calculates the pitch and angle of various roof heights. The pitch of a roof is the number of inches of vertical rise per 12 inches. For example: a roof of 3/12 is pitch is a roof that rises 3 inches for every 12 horizontal inches. This program demonstrates the angle computer given different roof pitches. You control the rise, anywhere for 0.5 ft to 12 ft. Use the up and down arrow keys to control the rise. By Eddie W. Shore. 2017/02/11

 Pixel Plot   (details) Prime ENG   107KB/4KB Program for changing Cartesian coordinates to pixels. When running programs on the HP Prime, the screen has a pixel coordinate system of 320 x 220 (to allow room for soft menu keys). There are two ways to calculate to translate Cartesian coordinates to pixel coordinates on the HP Prime. The easy way is to use the C→PX command. However, if you are working in custom made apps, C→PX may not work because the command requires that app has the Plot variables Xmin, Xmax, Ymin, and Ymax. This will require a conversion formula, provided by this program. By Eddie W. Shore. 2018/02/18

 PLANCK 1.0   (details) Prime ENG   2KB/3KB Code that solves the Planck integral for radiant flux in watts per square meter, given a temperature in Kelvins, between a lower wavelength and an upper wavelength, with an option to calculate the luminous power of a sphere of input radius. By David Sims. 2020/06/06

 Planes 1.2   (details) Prime ENG   57KB/14KB From the field of Vector Algebra, finds for two planes, plane and straight line or plane and point typical properties like distance, point or line of intersection, angle between two planes. By Claus Martin Dachselt. 2018/05/22

 Planetary Positions   (details) Prime ENG   9KB/22KB Computes the positions of the planets, plus one dwarf planet. By Tom Lake and Stephen R. Schmitt. 2018/05/17

 Plants vs Zombies 1.6   (details) Prime ENG   24KB/42KB Similar to the popular phone game, where you control the plants and must protect the garden from zombies. By Chong Wang. 2017/06/12

 Platonic Solids   (details) Prime ENG   6KB/3KB A set of routines to calculate the volume and surface area of the following solids: tetrahedron, hexahedron, octahedron, dodecahedron, and icosahedron. By Eddie W. Shore. 2017/02/11

 PLUNGE 1.0   (details) Prime ENG   5KB/8KB Calculates the time-to-fall in a plunge orbit (eccentricity=. The zip file contains two programs. PLUNGE1 requires input values for the initial separation where two objects are at mutual rest, and for the separation between those same objects at two subsequent times prior to contact. The code calculates the amount of time to fall from the initial separation to each of the subsequent positions, and then it calculates the time difference; i.e. the amount of time to fall from the first subsequent position to the second subsequent position. PLUNGE2 requires input values for an observed separation and for an observed radial velocity (in approach) for that separation, and for a final separation. The initial distance is calculated using the Vis Viva equation. Then the amount of time required to fall from the initial separation to the observed separation is calculated. Next, the amount of time required to fall from the initial separation to the final separation is calculated. Finally the time difference required to fall from the observed position to the final position is found by subtraction. By David Sims. 2020/06/06

 Point, Curve, Tangent 1.2   (details) Prime ENG   2KB/3KB Given a point (xP|yP) outside a curve described by f(x), this CAS program finds one or more tangent(s) Ti(x) through (xP|yP) to the curve, the accompanying tangential point(s) (xT|yT) on f(x) and the normal line(s) Ni(x) in (xT|yT). By Claus Martin Dachselt. 2018/04/09

 Pokédex   (details) Prime ENG   485KB/575KB Database of statistics, types, sizes, categories, sprites, names, categories, descriptions, typings, and more, for Pokémon characters. By Leo Chaing. 2019/01/17

 Poker   (details) Prime FRA   1KB/1KB Poker game. By Mickaël Nicotera. 2013/10/05

 Pole Embedment LT   (details) Prime ENG   3025KB/14KB Demo version of a program to perform calculations to determine the required embedment depth for free standing poles embedded in earth or concrete which are subjected to lateral and axial loading conditions. Both laterally constrained and unconstrained conditions can be analyzed, as well as isolated and non-isolated poles. The User inputs the physical characteristics of the pole, soil properties and lateral and axial loads and the program calculates required pole embedment depth. The program will analyze both round and rectangular shaped poles, multiple concentrated and full or partially distributed uniform lateral loads located at User specified points above the pole base. The User can also specify if the lateral loads are due to seismic or wind. Up to two additional axial loads can also be specified. In this demo version, only one lateral load can be specified, and allowable lateral soil bearing pressure is set to 100 psf/ft. By Al Robertson. 2018/03/18

 Polygonal Cross-Section 1.3   (details) Prime ENG   186KB/18KB Finds for any polygonal cross-section with gaps of circle areas the main section properties, draws the plot of the contour and computes for any load combination of N, My, Mz the stresses in all input points. Furthermore the intersection points of neutral axis ( Sigma = ) and contour of the polygon are calculated. By Claus Martin Dachselt. 2018/04/03

 Polynomial Homogeneous Test   (details) Prime ENG   2KB/1KB A polynomial is homogeneous if all of the nonzero terms has the same degree. This CAS program tests a polynomial of four variables x, y, z, and t and their combinations (x*y, x*z, x*y*z, etc). If the polynomial in question is homogeneous, the program returns a 1 (for true), otherwise 0 is returned (for false). By Eddie W. Shore. 2016/08/06

 Polynomial Interpolation   (details) Prime ENG   2KB/2KB A one-line program, to find an interpolated value using a polynomial interpolation function to a set of data points. Author unknown. 2017/02/11

 Polyphase Circuits   (details) Prime ENG   769KB/61KB Performs circuit analysis of polyphase/balanced three-phase circuits. Includes PDF documentation. By Bernard Michaud. 2020/04/12

 PolySolver   (details) Prime ENG   3KB/5KB Solves polynomials. By Mickaël Nicotera. 2017/04/27

 Pong   (details) Prime ENG   146KB/266KB A pong game. You can play against a second player or against the calculator. There are four different styles available, including retro and modern. By David Traum. 2017/08/17

 Pong 0.1   (details) Prime ENG   18KB/38KB The famous PONG game, now available on the Prime. Features: 3 modes (1 Player, 2 Players, and demo), 3 difficulty levels (beginner, intermediate, expert), and black and white graphics for the real retro feeling. By Jurgen Keller. 2014/10/18

 Power of Ten   (details) Prime ENG   3KB/2KB Very simple program to convert Power of Ten units. By Bernard Michaud. 2017/02/11

 Power of Ten Graphical   (details) Prime ENG   2KB/3KB Modified version of Power of Ten, a simple program to convert Power of Ten units, but with a graphical interface after your data is entered. By Bernard Michaud. 2017/12/17

 PPLX 0.1   (details) Prime ENG   6KB/14KB Creates some extras that might have been included in PPL, providing implementation limits and TYPEs. By Stephen Lewkowicz (G1CMZ). 2019/09/11

 Predicting Phases of the Moon   (details) Prime ENG   14KB/42KB Predicts the phases of the Moon. The user provides a calendar month and year and the software predicts the calendar date and UTC time of each lunar phase for that month. By C. Deagle, Jr.. 2022/08/31

 Pres   (details) Prime ENG   2KB/1KB Calculates parallel resistance accurately, avoiding catastrophic accumulation of roundoff errors in all but pathological cases (e.g. many large numbers). It's so simple that it can be entered as a user function. By Joseph K. Horn. 2015/08/23

 Prime and Xcas Examples of Solver   (details) Prime ENG   187KB/3KB Examples of the solver commands from Xcas for the Prime By Jaime Fernando Meza Meza (CompSystems). 2017/07/24

 PrimeCaster 3D 1.1   (details) Prime ENG   7KB/16KB Extended raycasting engine. By Xavier Andréani. 2018/10/14

 PrimeComm 0.9 Beta 22   (details) Prime ENG   3467KB Alternative communication program for transferring data between a Windows (.NET 4.0) computer and the HP Prime. Only for use with older firmware versions; do not use with current calculators. By Erwin Ried. 2014/10/18

 PrimeComm Source Code 0.9 Beta 22   (details) Prime ENG   11490KB Source code for an alternative communication program for transferring data between a Windows (.NET 4.0) computer and the HP Prime. By Erwin Ried. 2014/10/18

 PrimeFX   (details) Prime ENG   11KB/47KB A versatile paint app with many functions like a large canvas, different brushes, geometric shapes, text, filling and much more. By David Traum. 2017/08/16

 PrimeMon 1.3   (details) Prime ENG   160KB Windows program which interacts with the HP Connectivity Kit and the HP Prime Virtual Calculator, monitoring when programs are changed, to allow much more useful error messages to be shown when there is a syntax error when saving program code after editing it in the Connectivity Kit text editor. By Erwin Ried. 2017/04/15

 PrimeSkin 0.1 b4   (details) Prime ENG   50KB Skin editor for the HP Virtual Prime Emulator. By Erwin Ried. 2014/10/18

 Primitive Roots   (details) Prime ENG   6KB/6KB A set of three tools for dealing with primitive roots. One returns the smallest primitive root, one returns a list of all primitive roots, and one returns the next primitive root that is larger than the given value. Author unknown. 2015/09/07

 Program Search 0.5   (details) Prime ENG   13KB/5KB Program to search inside current program text, all programs, current note text, and all notes. May have issues on the G2. By Ex Set. 2019/09/01

 Program UNDO 0.1   (details) Prime ENG   2KB/2KB Saves the current version of a program while editing it, using user keys. Restores saved version (UNDO changes). Second call also allows to rollback UNDO operation (REDO). Author unknown. 2015/10/24

 Programming Helper   (details) Prime ENG   10KB/4-31KB Collection of programs to assist one in programming, containing a group of characters and units which are not available in the editor, which you can copy and paste from the note file to your program. By Bernard Michaud. 2017/02/10

 Programming Helper   (details) Prime ENG   10KB/13-36KB Drop down menus you can use, in the "Connectivity Kit Editor", as opposed to programming directly from the calculator itself. They contain a variety of commands, Greek symbols, and "Math" menu. By Bernard Michaud. 2022/02/27

 Programming with Spreadsheet   (details) Prime ENG FRA ESP   559KB/739KB Shows how to program the spreadsheet of the Prime. Includes as an example a periodic table of elements. By Michel Déchamps. 2014/10/19

 Programs for Astronomy and Orbital Mechanics   (details) Prime ENG   185KB/1-720KB A variety of astronomy and orbital mechanics programs. Also includes the support subroutines in case you want to write your own programs, as well as source code for some of the programs. By C. Deagle, Jr.. 2022/08/28

 PSSQ Algorithm   (details) Prime ENG   86KB/2KB The PSSQ Algorithm accepts a prime p congruent to 1 mod 4 and returns the pair [x,y] such that the equality p=2+y^2 is satisfied. There can only be one such pair and this algorithm finds it very quickly, processing a 45-digit prime in less than half a second. Based on the algorithm devised by Stan Wagon with improvements by John Brillhart. By Jim Cullen. 2021/04/10

 Psychrometer   (details) Prime ESP   8KB/33KB Mechanical engineering program. Works with thermodynamic properties of air and interpolation and some other things. By Piero Urrutia Rosazza. 2020/07/05

 PTable   (details) Prime ENG   1676KB/255KB Advanced periodic table based on the Touch Periodic Table of Elements. Full source code included, extensive documentation, and English and German versions. By Juerg W. Buser. 2015/07/26

 PVapor 1.0.0   (details) Prime ESP   3KB/15KB Vapor pressure equations program for the Thermodynamics course. Contains the HENDRIK equation equation and 2 ANTOINE equations. By Réne Llanos Machuca. 2021/05/23

 Py-41   (details) Prime ENG   73KB/140KB Emulates the HP-41CX, with 320 memory registers, full XMEM (except with ED), Helios printer support, and partial timer support. Written in Python, requiring a recent firmware update. By Olivier De Smet. 2021/05/23

 Pythagorean Triangle Search   (details) Prime ENG   4KB/2KB A Pythagorean triple is a trio of positive integers a, b, and c, that describe the lengths of a right triangle, where a and b are the lengths of the sides while c is the length of the hypotenuse. This program asks you for m and n and generates a Pythagorean triple. Make sure that m > n. By Eddie W. Shore. 2020/09/30

 Pythagorean Triples   (details) Prime ENG   2KB/2KB Calculates a Pythagorean triple. A Pythagorean triple is a set of three positive integers A, B, and C that represent the lengths of a right triangle, with C being the hypotenuse. Hence, A^2 + B^2 = C^2. By Eddie W. Shore. 2017/02/11

 QPI 4.3   (details) Prime ENG   19KB/10KB HP Prime port of QPI 4.3 (originally for the HP 48 series). Approximates any floating point numbers by a rational number, square root, multiple of PI, exponential or a logarithm depending on which approximation seems best. By Han Duong (HPSolo) and Mika Heiskanen. 2013/12/22

 QTM   (details) Prime ENG   2KB/1KB Tools for working with quaternions in 2x2 matrix form. By Eddie W. Shore and Salvo Micciché (salvomic). 2016/08/03

 Quiz Multiplication 1.0   (details) Prime ENG   1KB/3KB Practice multiplication tables. By Tomasz Stochmal. 2022/07/31

 R134a y R22   (details) Prime ESP   25KB/168KB Performs calculations related to the refrigerants R134a and R22. By Humberto Zurita. 2020/07/05

 Rabbits vs Foxes   (details) Prime ENG   20KB/3KB Determines the population of rabbits and foxes over time as modeled by the differential equations dr/dt = 2 * r - α * r * f and df/dt = -f + α * r * f. Includes two versions, one which gives numerical results and one which plots the results. By Eddie W. Shore and Mark Power. 2020/04/11

 Racer V35   (details) Prime ENG   71KB/97KB Outrun style racing game, with amazing graphics, just like the old Sega game. By Mark Power. 2018/02/18

 Radioactive Wastes   (details) Prime ENG   115KB/24KB Looks similar to Sokoban but is actually fairly different. There are four kinds of objects: blue cold waste (after pushing it, it will roll until it hits a barrier), red warm waste (comes from a combination of two or more cold waste and cannot be moved), animated red critical mass waste (cold waste or warm waste can change into critical mass when it touches the critical mass), and boxes (you can push them and they will not roll). By Piotr Kowalewski. 2015/10/24

 RandList_4in1 1.0   (details) Prime ENG   2KB Generates a list of the requested number of random numbers with the numbers in the specified range. By Xinyang He. 2022/07/31

 Rational Binomial Coefficients   (details) Prime ENG   3KB/2KB Calculates the rational binomial coefficient. By Eddie W. Shore. 2019/01/17

 Rational Binomial Coefficients   (details) Prime ENG   11KB/29KB A compressability factor, residual entropy and residual enthalpy calculator using the Lee Kesler method. Author unknown. 2019/01/17

 Rational functions Polynomial expansion   (details) Prime ENG   3KB/5KB Does polynomial expansion of rational functions with partfrac and cpartfrac. Author unknown. 2015/10/24

 RC Index 1.1   (details) Prime ENG   3KB/8KB Determines the optical parameters and quality of a doublet lens for astronomical refractors - RC index parameters from one or two known glasses. If you know one lens material, you can use the simple method (RCindex_universal), or if you know both lenses (RCindex_2_lenses), you can enter refractive indexes from the glass catalogue of manufacturers such as Ohara, Schott and others. The program determines lenses such as Achromat, semi Apochromat or Apochromat and their parameters. By Josef Ladra. 2021/05/23

 Real Time Ephemeris   (details) Prime   58KB/133KB Calculates ephemeris in real time. In Indonesian. By Fikri Bahr. 2019/12/31

 Reinforcement of a Concrete Beam 2.01   (details) Prime ENG DEU   108KB/19KB Calculates on the basis of Eurocode 2 the tension reinforcement and, if required, the reinforcement in the compression zone of a concrete beam with given geometry, quality of concrete and loads M,Ed and N,Ed. Afterwards the calculation for a shear force V,Ed is performed. Documentation in German. By Claus Martin Dachselt. 2019/02/11

 Rentas de 5ta Categoría Perú   (details) Prime ESP   3KB/7KB Program to calculate the income of 5th category Perú-2019. By Misael Campana Chacca. 2019/07/20

 Reparto de Utilidades   (details) Prime ESP   3KB/9KB Program for calculation of the distribution of profits of a company with the factor of days worked, and factor of remuneration. By Misael Campana Chacca. 2019/07/20

 Repeating Decimals / Recurring Decimals 0.9   (details) Prime ENG   13KB/29KB Given an integer reciprocal, analyzes the decimal representation to identify the transient and repeating/recurring parts of the decimal. By Stephen Lewkowicz (G1CMZ). 2018/02/18

 Resistencia Para LEDs   (details) Prime ESP   2KB/1KB Calculates the current limiting resistor for a given number of LED diodes in series. By Ariel Palazzesi. 2014/10/19

 Resistor Colors   (details) Prime ENG   6KB/15KB Enter the colors of a resistor, and the resistance is calculated. By Lars Fredriksson. 2018/03/01

 Resistor Helper   (details) Prime ENG   152KB/25KB A simple but effective resistor color coding app. Supports both 4 and 5 band resistors. By matalog. 2022/08/07

 Rigidez Condensada 1.01   (details) Prime ESP   5KB/12KB Calculates the condensed stiffness matrix and the general matrix for a typical framing system, assuming all elements are fully flexible. By Carlos Campos Guerra. 2017/02/21

 Rigidez General 1.0   (details) Prime ENG ESP POR   13KB/29KB Calculates the global stiffness matrix of a system whose elements are completely flexible. By Carlos Campos Guerra. 2017/05/20

 RKPrime 1.0   (details) Prime ESP   1072KB/100KB Solves a differential equation system (up to five dependent variables) using the 1st to 4th order Runge-Kutta methods. It´s perfect for the Chemical Reaction Engineering course and some Electrical Engineering applications. By Yesid Eduardo Puerto. 2019/12/29

 RocLab Prime 1.0   (details) Prime ESP   4KB/11KB An app that allows determining the resistance parameters of the rock mass, according to the Generalized Hoek-Brown failure criterion. By Jose Edgar Campos Cespedes. 2022/02/27

 Roman   (details) Prime ENG   2KB/1KB Converts an integer to Roman number By Lars Fredriksson. 2014/10/22

 Rotating Graphics Objects   (details) Prime ENG   2KB/2KB Shows how to rotate graphics objects, useful for rotating text within a program, including sample code of how to use it. By Erwin Ried. 2017/03/11

 Rounding to the Nearest Reciprocal   (details) Prime ENG   14KB/2KB Rounds a number to the nearest 1/n. This function can come in handy in several applications, for example, when working with construction or measuring, when have to round results to the nearest eighth (1/8), inch (1/12) or sixteenth (1/16). By Eddie W. Shore. 2017/12/06

 RPL 0.5 Alpha 22-Aug-19   (details) Prime ENG   377KB/833KB An early alpha release of a full RPL environment that runs on the Prime. The goal is to emulate the RPL functionality of the 48/49/50, while reusing as much of the existing Prime environment as possible. By Jim Vaccaro. 2019/08/29

 RPN Keystroke Simulator 1.0   (details) Prime ENG   602KB/28KB Offers 47 equations for HP Prime's Solver App. Just run the eqlib program, select the category that you are interested in, and select the equation within that category and you are off and running. Categories include: Geometry (areas, volumes, surface areas), Finance (monthly loans, sales tax, break-even), Temperature Conversion (Fahrenheit to and from Celsius), Physics: Problems of Motion (linear distance, circular motion, pendulums, terminal & escape velocity), Sound (speed of sound, Doppler effect, loudness), Optics (Lens and Snell equations, spherical refraction), Electronics (2 resistors series and parallel, thermal noise, Ohm's Law), Astronomy (parallax, luminosity, Kepler's 3rd Law, time dilation), Great Circle Calculations, Angle of Incidence Calculations, Gases (Ideal and Boyle's Gas Laws, heat capacity, air density, isothermal expansion), and Fluids (depth pressure, fluid flow, Bernoulli's Equation). By Eddie W. Shore. 2015/10/24

 RPN Prime SurveyCalc 2.3   (details) Prime ENG   329KB/366KB RPN Calculator app designed for typical math operations and optimized for survey calculations with angle, distance, area and volume unit support. Converting between units is simple, and results can be stored in variables for later use. Now supports 2D/3D vectors and has an improved workflow for storing and purging variables. By Jacob Wall. 2019/12/31

 RPN Stack I/O   (details) Prime ENG   2KB/3KB A workaround to allow reading and writing back to multiple stack locations from PPL via a key definition. By Steve Tuc. 2018/05/17

 RTable 1.0   (details) Prime ENG   153KB/86KB The functions contained in this program use the Spreadsheet application to provide an analog of the Data Frame object in the R language and environment for statistical computing and graphics. In particular, the functions provide a means of loading a spreadsheet from a CSV file and saving spreadsheet content to a CSV file. Additional table management functions are provided, for example to add or remove rows or columns. RTable uses the RFC standard for CSV files, but you can specify changes such as a different field delimiter character (e.g. tab) or fixed-column fields. You can choose which attribute of a cell to load or save, such as name or formula, but only values are loaded correctly in this release. A small number of frame related functions are provided, like names and ncol. Comprehensive PDF documentation included. By Mark A. Fleming. 2016/08/06

 Runge Kutta 4th Order Method   (details) Prime ENG   3KB/1KB Two functions for solving differential equations using the Runge Kutta 4th Order, one that takes all five arguments as parameters and the other that uses an input box. By Eddie W. Shore. 2015/08/23

 Runge-Kutta 1.1   (details) Prime ESP   349KB/9KB Four CAS functions that solve ordinary differential (system of) equations using the following methods: Euler method, Heun Method (also known as Modified Euler method), third-order Runge-Kutta method and fourth-order Runge-Kutta method. By Jhonatan Peretz. 2021/04/10

 SameGame 1.3   (details) Prime ENG   208KB/32KB Clear the board by selecting groups of adjacent circles of the same color. The points for a group increase with its size. By Tony Gallo. 2022/07/31

 SAMPLE   (details) Prime ENG   1KB/1KB Generate a list of random integers from 1 to N using sample without replacement. By Eddie W. Shore. 2013/10/05

 Saving Space In Games   (details) Prime ENG   3KB/1KB Explains how to save space in games by using a run-length encoding method of compression for graphics. By Patrice Torchet. 2014/10/22

 SCHIP Emulator   (details) Prime ENG   17KB/34+KB SCHIP emulator, including Pong, Space Invaders and Tetris ROMs as samples. Some games don't work as expected, but it should play many CHIP and SCHIP games. By Mark Power. 2015/08/19

 ScreenCap 1.0   (details) Prime ENG   55KB/104KB A Screen Capture utility that saves your calculator screen as a PNG file to the app's Files folder. Uses a user key definition to accomplish the task from most calculator screens. Includes a File Manager to delete and view existing screen captures. By Jacob Wall. 2020/04/11

 SecHP 2.1   (details) Prime ENG ESP   615KB/427KB Program for calculating the area, center of gravity, moments of inertia and main angle of composite geometric figures. By Edwin Córdoba. 2020/06/06

 Section 2.0   (details) Prime ENG   51KB/2KB Calculates some geometric properties for figures made from rectangles, like W section or so. By Rafael H. Padilla V.. 2014/10/19

 Section Properties LT 2.0   (details) Prime ENG   2816KB/13KB Demo version of a program that performs calculations to determine the structural properties of typical shapes. The user inputs the physical dimensions for a selected shape and the program calculates the following properties for both the X-X and Y-Y orthogonal axes: Area, Centroid Depth, Moment of Inertia, Elastic Section Modulus, Plastic Section Modulus, Radius of Gyration, Torsional Constant and Shape Factor. Analyzes I-Shaped, Solid Rectangular and Circular and Solid Rectangular and Circular Tube sections. The paid version of the program adds Angle, Built-Up Girder with Web and Flange Plates, Channel, Symmetrical I-Shaped Girder, Unsymmetrical I-Shaped Girder, Solid Rectangle, Solid Round Bar, Rectangular Tube (HSS), Circular Tube (HSS), Tee and Zee Sections. LT Version will analyze I-Shaped, Solid Rectangular and Circular and Solid Rectangular and Circular Tube sections. By Al Robertson. 2018/03/11

 Series and Parallel Impedance Solver   (details) Prime ENG   2KB/3KB Calculates both series and parallel impedance, and allows you to accumulate resistors by building on prior calculations. By Bernard Michaud. 2017/02/10

 Setting Auto Shutoff 1.0   (details) Prime ENG   10KB/8-10KB A program to make it easy to set the auto shutoff period, using a slider. Also includes a slightly newer version without the slider. By Wolfgang Kühn and others. 2017/02/11

 Shewhart X-Bar Chart   (details) Prime ENG   4KB/3KB Given a matrix, XCHART generates five variables that describe the parameters of a Shewhart X-bar chart for quality control purposes. Two limits, upper and lower, are determined, set 3 deviations from the mean, set the boundaries in which a process can vary and still allow the process to be in control. By Eddie W. Shore. 2017/08/26

 Shuttle 1.0   (details) Prime ENG   52KB/168KB Draws a space shuttle. Vector data was converted from an old AutoCAD DWG file. By Jurgen Keller. 2014/10/18

 Sierpinski   (details) Prime ENG   1KB/1KB Sierpinski's triangle generator. By Mickaël Nicotera. 2013/10/05

 Sieve of Eratosthenes   (details) Prime ENG   23KB/3KB Shows a miniature version of the famous Sieve of Eratosthenes. The Sieve of Eratosthenes is a Greek algorithm that determines prime numbers from 2 to N through eliminating multiplies. By Eddie W. Shore. 2018/12/21

 SIM8080   (details) Prime ENG   14KB/98KB Simulates the 8080 microprocessor. Author unknown. 2017/11/12

 Simon 1.3   (details) Prime ENG   43KB/15KB Implementation of Simon Says, where you must repeat the pattern shown to you. By Tony Gallo. 2020/04/11

 Simple Interest   (details) Prime ENG   5KB/10KB Calculates simple interest (with inverse formulas) both for actual year and financial year (365 or 360 days). It can even calculate a difference between two dates and use it (as n) to calculate interest. By Salvo Micciché (salvomic). 2015/08/23

 Simple Logistic Regression   (details) Prime ENG   2KB/2KB Attempts to fit two lists of data (X, Y) to the equation y=1/(A+B*e^(-x)) by using the translation: X’ = e^-X and Y’ = 1/Y and performing linear regression analysis on X’ and Y’. This is good for all data except when y = 0. By Eddie W. Shore. 2017/04/22

 Simple Strengths Utilities   (details) Prime ENG   12KB/34KB Various separate programs to perform some engineering calculations, for Strength of Materials, including Second Moment of Inertia, Common Dimensions, Complex Stress Systems Calculation, Equivalent Torque and Moment, Moment Calculation, Rosettes, Thinwalled Pressure Vessel, and more. By Brad Woollon. 2017/04/30

 Simple Units   (details) Prime ENG   5KB/10KB Takes over the [Shift][_] key and provides a super-simple units menu for facilitating unit conversion. When the user types the _ symbol via [Shift][_], a units menu is automatically shown (and if applicable, the last menu used will be displayed). The first menu is the category, and the second menu is the list of units within that category. By Han Duong (HPSolo). 2021/04/10

 Simplex 1.0   (details) Prime ENG   692KB/15KB Linear programming by the Simplex 2 phase method. Author unknown. 2017/02/16

 Simplex 20.13   (details) Prime ENG   663KB/88KB Solves linear programs using the simplex method, providing a pure integer solution, or a mixed integer, continuous and binary solution. Lets you save and reload data, set target Z value, import data from spreadsheet, and use user definable variable names. Author unknown. 2017/02/11

 Simplified Modulo Expressions   (details) Prime ENG   47KB/2KB Finds equivalent congruence for A ≡ B mod M. The user inputs B and M, A and equivalent congruence will be calculated. By Eddie W. Shore. 2019/12/29

 SIMPRULE   (details) Prime ENG   2KB/1KB Using Simpson's Rule, approximates the integral of f(X): ∫f(X)dX=h/2*(f(a)+2*Σf(x_E)+4*∑f(x_O)+f(b)) where a is the lower limit, b is the upper limit, n is the number of intervals and is even, h is (b–a)/n, x_E is a+h*I where I is from 1 to n-1 and I is even, and x_O is a+h*I where I is from 1 to n-1 and I is odd. By Eddie W. Shore. 2016/08/06

 Simulateur Probas   (details) Prime ENG FRA   158KB/5KB Probability simulator, letting you flip coins, roll a 6-sided die, spin a 4-numbered/colored spinner, take a colored ball out of an urn, deal 5 cards, or get random numbers. By Mickaël Nicotera. 2018/02/25

 Simultaneous Linear Equation Solver 1.0   (details) Prime ENG   3KB/14KB Simultaneous linear equation solver which solves 2x2 and 3x3 equations in Real and Complex mode. Mimics HP Linear Solve App, with Inputs and Outputs on the same screen. To return to Menu: Check Menu[] box and [Ok]. By Bernard Michaud. 2019/02/11

 Single-Span Girder 1.2   (details) Prime ENG   248KB/19KB Calculates for a single-span girder with any number of sections and elastic restraints or external moments at the supports the support reactions, end moments and maximum field moment including its location. Each section may have a trapezoidal load and a point load at the right end. Furthermore the shear force and the internal moment for any point of the beam can be calculated. By Claus Martin Dachselt. 2018/03/18

 Singular Value Decomposition 14-FEB-2017   (details) Prime ENG   16KB/42KB Computes the singular value decomposition of a matrix. It additionally provides the commands diag2 (diagonal), pinv (pseudo-inverse), qrp (permutation/unitary/upper triangular), and lqp (permutation/unitary/lower triangular). By Han Duong (HPSolo). 2020/04/11

 Sinus Ranger   (details) Prime ENG   9KB/32KB A 2D open world game similar to Minecraft. You can explore an infinite world with varying terrain, build with different kinds of blocks, dig into the ground, and shoot enemies. By David Traum. 2017/02/15

 SkeletonApp   (details) Prime ENG   144KB/20KB Event driven framework for applications. By Juerg W. Buser. 2015/07/26

 SkeletonDemo   (details) Prime ENG   26KB/30KB SkeletonDemo is a fancy demo app for the event driven framework SkeletonApp. It tries to visualize the concept behind the framework. By Juerg W. Buser. 2015/07/26

 Skeptic   (details) Prime ENG   15KB/2KB A method for combining experimental results. The idea is this: if we "trust" the values and error bars reported by the various experimenters, the usual recipe for computing a weighted average and overall error bar is fine. But if the error bars are inflated or deflated (intentional or unintentional), the Bayesian approach allows for some "slop" in the error bars and finds optimal agreement between the experiments. For instance, if one experiment reports a value with small error bars that is quite different from other experiments, the usual weighted average calculation will be dominated by that "rogue" experiment. This does not happen with the Bayesian (SKEPTIC) recipe. Author unknown. 2020/04/11

 Slider   (details) Prime ENG   6KB/14KB Simple sliding panels game. By John Olwoch. 2013/12/22

 Slider 1.0   (details) Prime ENG   181KB/24KB Slider game, where the object of the game is to put the tiles back in proper numeric order. By Tony Gallo. 2022/02/27

 Slider TPPTB 2.0   (details) Prime ENG   17KB/28KB A game where you slide a box around on a square graphic. By Chong Wang. 2017/06/10

 SLK (Straight Line Kit) 4.1b   (details) Prime ENG ESP   1050KB/280KB Helps you to find the distance, the slope and the equation between two points, the perpendicular distance between a point and a straight line, collinearity of three points (the middle-point and the end-point coordinates), the equation of a straight line that goes through a point with a slope, transforms linear equations back and forth between standard and slope-intercept forms, generates the coordinate representation of a straight line, determines whether two straight lines are parallel or perpendicular, finds the (x) & (y) intercepts of a straight line, finds the intersection point of 2 straight lines, transforms a non-standard form equation into a standardized form of it, divide a segment into points or sub-segments, performs linear interpolation/extrapolation. Requires firmware 10077 or higher. By Dante Camargo. 2018/09/09

 Slopefield   (details) Prime ENG   2KB/2KB Graphs the slopefield of a differential equation in the form dy/dx = f(x,y). This program is adopted from Alan Ziv’s SLPFIELD program, which Ziv programmed for the Casio fx-9850G. By Eddie W. Shore. 2016/08/03

 Smith Chart   (details) Prime ENG   7KB/9KB Displays a Smith chart and if you tap a point will display many of the relevant data about that point, including Z, X, Gamma, Return Loss, VSWR and Q. By Keith Barkley. 2017/06/09

 Smith Chart Conversions   (details) Prime ENG   3KB/3KB Calculates one of two sets of conversions: Return Loss (RL) to Standing Wave Ratio (SWR, in decibels): RL to ρ (reflection coefficient) to σ (voltage standing ratio) to SWR, and Standing Wave Ratio to Return Loss: SWR to σ to ρ to RL. By Eddie W. Shore. 2017/12/28

 Smith Chart with Gradients   (details) Prime ENG   10KB/27KB Modified version of Smith Chart that adds the ability to paint up to 3 parameters (any three) in RGB. Works, but very slow - 6-8 minutes to paint. By Keith Barkley and others. 2017/12/28

 SmithChart April 2021   (details) Prime ENG   379KB/408KB Displays a Smith chart and if you tap a point will display many of the relevant data about that point, including Z, X, Gamma, Return Loss, VSWR and Q. Modified to be an app that expands to fill the display, inverting the cursor, and more. Gives the usual Smith chart results just by clicking on the chart. Also, up to 3 parameters can be clicked to select colors and when "Gradient" is clicked, the gradients in the selected colors are plotted. Much faster than the previous version. By Keith Barkley and Doug Music. 2021/05/23

 Snake 2.0   (details) Prime ENG   3KB/4-8KB Recreation of the classic Snake game, where you eat dots and grow bigger, while trying not to run into yourself. Author unknown. 2017/02/15

 Soil Pressure of a Foundation with Open Gap 1.2   (details) Prime ENG   393KB/21KB Computes for a rectangular foundation submitted to vertical loads N and moments My and Mz the soil pressure for all points of the contour in consideration of a open gap (no tension possible in the gap). The automatic consideration of the own weight is provided. A plot of the area of pressure is depicted after calculation. By Claus Martin Dachselt. 2018/04/29

 Sokoban 1.5   (details) Prime ENG   31KB/124KB Push the blocks into their storage locations without getting stuck by a wall. Lots of fun, and many levels. Now has some improvements: made compatible with the Prime G2 and the latest firmware, keys control support in addition to touch control, best scores history, last move undo, and other bug fixes. By Ariel Palazzesi and Daniel Bausset. 2020/04/11

 Solar Irradiance   (details) Prime ENG   3KB/1KB Calculates two properties: the solar angle of incidence given the angular elevation and azimuth (from south going “counterclockwise”: east-north-west) of both the sun and panel, and the irradiance given by the solar panel. By Eddie W. Shore. 2015/08/20

 Solitaire - Baker's Game 1.29   (details) Prime ENG   9KB/27KB Solitaire game. Build up suits top left to win. Touch a card to pick it, then tap a destination to move it. Cards can only be moved onto the same suit and in sequence. By Mark Power. 2018/02/18

 Solver: Length of a V Belt   (details) Prime ENG   46KB/3KB Given the large pulley diameter, the small pulley diameter, and the center-to-center distance, this program calculates the length of the V-belt needed to connect them. By Eddie W. Shore. 2019/05/27

 SolveSys 1.000   (details) Prime ENG   537KB/252-301KB Intended to replicate and combine programs from the HP 48 series of calculators for organizing equations and launching an equation solver. This app attempts to allow users to build their own equations library. The user can then also launch a numerical solver. This app implements the Newton-Raphson algorithm for solving a system of equations. In order to handle ill-conditioned, over-determined, under-determined, rank-deficient (etc.) Jacobian matrices, the SVD is used to determine the pseudo-inverse of the Jacobian (the pseudo-inverse coincides with the regular inverse of a matrix for non-singular matrices). Includes a copy of the equation library from the HP 48/49 series to get you started, including all the graphics. Also includes a more accurate version that requires Singular Value Decomposition. By Han Duong (HPSolo). 2017/04/15

 Solving Integral Equations   (details) Prime ENG   50KB/2KB Solves the equation ∫( f(t) dt, 0, x) = a and ∫( f(t) dt, 0, x) - a = 0. By Eddie W. Shore. 2019/08/29

 Solving Quadratic Equations Step-By-Step   (details) Prime ESP   114KB/73KB Solves quadratic equations in a step-by-step fashion. Requires QPI. By Jaime Fernando Meza Meza (CompSystems). 2017/02/11

 SortLists 0.7   (details) Prime ENG   12KB/30KB A collection of Sort functions for lists. Requires List API. By Stephen Lewkowicz (G1CMZ). 2019/12/29

 Special Products   (details) Prime ENG   459KB/3KB A short program that uses the to Numerically solve Special Product equations. Includes comprehensive PDF documentation. By Bernard Michaud. 2016/08/06

 Spect 001   (details) Prime ENG   566KB/17KB Performs symbolic time to frequency and frequency to time calculations: calculates for a given symbolic f(t) Fourier, Laplace and Z-transformation in symbolic form, draws the complex Laplace function together with the Fourier transformation slice as a 3D plot, and calculates for a given frequency transfer function the unity pulse, dirac pulse response and bode magnitude and phase in symbolic form. Includes PDF documentation. By Frank P. 2019/07/20

 Spectrum Analysis   (details) Prime ENG   52KB/1KB Does spectrum analysis using a Fourier transform. Author unknown. 2018/09/09

 Spider 1.4   (details) Prime ENG   6KB/16KB Card game of Spider solitaire. By Chong Wang. 2017/06/12

 Spring Constants 1.1   (details) Prime ENG   48KB/6KB Calculates for a one-field beam with modulus of elasticity E and moment of inertia I the equivalent spring constants (vertical spring c,v and rotational spring c,phi) at any point of the beam's length L. Different kinds of support conditions are provided. By Claus Martin Dachselt. 2020/04/11

 Square Root Linear Regression   (details) Prime   2KB/2KB Attempts to fit data to the curve Y = √(A + B*X) using the linear transformation y^2 = a + b*x. By Eddie W. Shore. 2017/07/17

 Standard Flow Rate of a Gas Pipeline 5.0   (details) Prime ENG   5KB/27KB Calculates the standard flow rate of a pipeline using 9 calculation models (Theoretic, Weimouth, Panhandle-A, Panhandle-B, IGT, Mueller, Fritzsche, AGA-A, AGA-B). The listed calculation models are specific for flowing real gases in long ducts under approximately constant temperature (Real Fluid Isothermal Flow). Models include the gravitational energy term, allowing better results for ducts through mountain regions. By Antonio Ricardo Bozolla. 2021/09/12

 Starvault   (details) Prime ENG   114KB/133KB The beginning of an implementation of an adventure game, but never finished. Maybe somebody would like to finish it, or at least look at the source code for inspiration. Author unknown. 2017/02/16

 Statistic Distributions   (details) Prime ENG   9KB/1-20KB Adds more statistic distributions, including logistic distribution, lognormal, exponential, geometric, hypergeometric and negative hypergeometric, negative binomial, Gompertz, Weibull and translated Weibull, Cauchy, beta, gamma, zeta, Laplace, uniform, multinomial, n-Erlang, Rayleigh, Pareto, Maxwell-Boltzmann, Gumbel, standard Gumbel, and Fréchet. By Salvo Micciché (salvomic). 2016/08/03

 Steam97   (details) Prime ENG   30KB/266KB Implementation of the Steam Table for the complete IAPWS IF-97 standard. Provides accurate steam and water properties from 0 - 1000 bar and from 0 - 2000 deg C according to the standard IAPWS IF-97. For accuracy of the functions in different regions see IF-97. Author unknown. 2020/05/03

 SteamPro Z.2   (details) Prime ESP   134KB/487KB Some kind of steam calculation application with vapor tables. By Alexander Mendoza, William Rojas, and Humberto Zurita. 2020/07/05

 Straight Lines 1.2   (details) Prime ENG   52KB/10KB From the field of Vector Algebra, finds for two straight lines L1 and L2 the distance between the lines, the points P1 and P2 of minimal distance on both lines, the intersection angle and checks, whether the lines are parallel, skew or have a common point of intersection. If the direction vector of L2 is entered as [0], the problem is handled as straight line L1 and point P. In this case the program finds the distance, the base point of perpendicular Pn, perpendicular vector P_ and the reflected point P0'. By Claus Martin Dachselt. 2018/05/22

 Street Flow (Shallow or Sheet Flow)   (details) Prime ENG   302KB/18KB Calculates the depth of flow in a composite gutter section using Manning’s equation modified for shallow or sheet flow using the HEC 22 (August 2013) equation that describes Q in terms of Sx, S, and T and not the equivalent equation that described Q in terms of Z, S, and d. Program assumes: (1) the curb face is vertical, (2) friction on the curb face is ignored, and (3) flow is contained in the street and gutter section, even if the water depth is above the height of the curb. By Gene Shiomoto. 2018/05/01

 Stress in the Transition from a Buried Duct 7.0   (details) Prime ENG POR   155KB/13KB Program in the area of piping engineering, designed to calculate the force that an anchor block must withstand in the buried/air transition or the requirements for the transition to take place without an anchor block (transition length). By Antonio Ricardo Bozolla. 2021/09/12

 String Library   (details) Prime ENG FRA   7KB/9KB Library with dozens of useful functions for working with strings, including substrings, reversing, splitting, joining, sorting, and more. Author unknown. 2016/08/03

 Subsonic Fanno Flow 3.0   (details) Prime ENG   4KB/13KB Program for the piping area, designed to calculate Fanno's flow properties (adiabatic duct flow with friction): stagnant properties; critical properties; input and output properties; and reduced mass flow rate when flow is blocked at outlet. Units of measurement in the International System. Note: Only for subsonic match number at the entrance. By Antonio Ricardo Bozolla. 2021/06/16

 Sudoku 1.2b   (details) Prime ENG   31KB/61KB This is a Sudoku editor/solver for the HP Prime. The GUI is a bit rough, but serviceable. Allows you to select the grid size (4x4, 9x9, or 16x16), clear the grid, and solve the problem, showing trivial hints. Includes some demo problems. By Lennart Börjeson. 2017/02/11

 Suites   (details) Prime FRA   1KB/1KB Does calculations related to summations and series. By Mickaël Nicotera. 2017/04/27

 Sukudo 3.6   (details) Prime ENG   25KB/13-78KB A set of tools for working with Sudoku, allowing you to play the game, solve the game, or make the game. By Chong Wang. 2017/06/13

 Sum of Two Squares   (details) Prime ENG   33KB/2KB Given a positive integer n, it can be possible to find two non-negative integers x and y such that n = x^2 + y^2. This program uses iterations to find all possible pairs which fit n = x^2 + y^2. Some integers do not have representations, others have more than one. The program will show all possible combinations. By Eddie W. Shore. 2019/08/29

 Supersonic Ball 1.00   (details) Prime ENG   158KB/238KB A simple side-scrolling platformer/tunnel hybrid where you control a bouncing ball, guiding it to the end of each level. Challenge lies in getting through narrow areas or climbing stuff without bouncing back, and it gets progressively harder to do so as the game progresses. The game features physics, randomized levels, animated graphics, multiple themes to make the game look different, smooth scrolling and parallax backgrounds. Try to get as far as possible as fast as you can without running out of time to get the highest score! For speed reasons, a G2 HP Prime is recommended. By Kévin Ouellet (DJ Omnimaga). 2022/07/31

 Supersonic Fanno Flow 4.0   (details) Prime ENG POR   5KB/21KB Calculates the following properties for adiabatic duct flow with friction (Fannow flow): stagnation, critical, inlet and outlet duct with mass flow, update of incoming Match number for blocked duct at the entrance, reduced mass flow rate for the blocked duct at the inlet. Also calculates flow into a duct under permanent, adiabatic, and unidimensional flow, perfect gas with constant area, axle work and potential energy negligible, and wall friction related to Darcy-Weisbach's equation. By Antonio Ricardo Bozolla. 2021/05/23

 Surface and Flux Integrals   (details) Prime ENG   4KB/3KB Implementation of surface and flux integrals, returning the surface of the paraboloid. By Arno Kizina. 2017/11/05

 Symbolic Computation and Math with the HP Prime   (details) Prime ENG   3904KB Comprehensive book in English explaining how to do math on the Prime, with a focus on the CAS. In PDF format. Translated from the original French. By Renée De Graeve and Jean-Michel Lecointre. 2018/01/24

 Syntax Highlighters for BBEdit   (details) Prime ENG   5KB A syntax highlighter for the Prime Language for BBEdit and Textwrangler for Macintosh computers. By Andy Bulka. 2018/05/01

 System of Two Linear Differential Equations 1.01   (details) Prime ENG   3KB/4KB Finds the solution to a system of two dífferential equations given as d(y1)/dx =*y1 + b*y2 + f(x) and d(y2)/dx =*y1 + d*y2 +g(x). For initial values x0, y1(x0), y2(x0) the constants of integration are calculated. A graph of both functions y1, y2 is provided. By Claus Martin Dachselt. 2018/12/09

 SZ_Show_Text 1.1   (details) Prime ENG   5KB/17KB An interactive graphics alternative to the terminal screen in order to show any text content on multiple pages from a program, with support for line breaking, coloring and different font sizes. Author unknown. 2018/12/21

 T-Rex 1.0   (details) Prime ESP   95KB/70KB T-Rex game modeled after the one in Google Chrome. By Carlos Campos Guerra. 2015/09/07

 Tablas de Aire   (details) Prime ESP   10KB/28KB Air Properties Program, with variables such as temperature, enthalpy, relative pressure, internal energy, relative volume, and entropy. Only 1 input parameter is necessary. By Misael Campana Chacca. 2019/10/16

 Tablas para el curso de Mecanica de Fluidos 2 1.0   (details) Prime ENG   588KB/10KB Tables for Isentropic Flow, Shockwaves, Fanno Flow and Rayleigh Flow, given the Mach number. Includes PDF documentation. By Misael Campana Chacca. 2018/12/19

 Tablas Refrigerante R134a 1.0   (details) Prime ESP   14KB/82KB Finds the thermodynamic properties of R134a refrigerant by calculating pressure, temperature, specific volume, internal energy, enthalpy, and entropy By Misael Campana Chacca. 2019/05/27

 Taludes Bishop 1.0   (details) Prime ESP   74KB/73KB Solves the simplified Bishop Method for slopes, with n layers, with or without water table and with or without tension gash. By Rocky Giban Ayala Bizarro. 2016/08/03

 Tangent and Normal Line to a Curve Defined by f(x) 1.2   (details) Prime ENG   2KB/3KB This CAS program finds the normal (or perpendicular) line N(x) through a given point (xN,yN) to the curve of a given function f(x) and additionally computes the tangent in the common intersection point (xT,yT) of curve and N(x). By Claus Martin Dachselt. 2018/04/09

 Tank Emptying Time 1.0   (details) Prime ENG POR   169KB/29KB Program designed to calculate the emptying time of a reservoir (constant section, inverted cone or spherical) with a free surface exposed to the atmosphere, using an orifice or horizontal tube of length L, diameter D and an outlet also exposed to the atmosphere. Conditions are non-stationary flow (discharge velocity varies with height of liquid in reservoir) and incompressible (liquids only) with loss of head in discharge piping. The user can choose up to 10 types of fluids for calculation. Ex: fresh water, salt water, motor oil, gasoline, ethanol and kerosene. By Antonio Ricardo Bozolla. 2021/07/30

 Taylor Expansion with 2 Variables   (details) Prime ENG   3KB/3KB Function that returns the Taylor expansion of functions of two variables, because the Taylor function included in the Prime only works for single variable functions. By Hamorabi. 2019/12/31

 Taylorani   (details) Prime ENG   20KB/8KB Displays a (hopefully) animated Taylor approximation of a function that can be entered via View: Input Data. There is sine without using input and cosine preselected in input. By Arno Kizina. 2017/11/12

 Teclas Dedicadas 2.01   (details) Prime ENG ESP POR   79KB/80KB Manages alternate user keyboards, with 6 editable profiles to modify the functions of the calculator keys. By Carlos Campos Guerra. 2017/02/10

 Terminal Alternative 1.01   (details) Prime ENG   6KB/11KB An improved alternate terminal program, eliminating the problems with the very size-limited line buffer and not displaying the most recent PRINTed line. Author unknown and others. 2017/06/04

 Tetris   (details) Prime ENG   2KB/6KB Simple implementation of the Tetris falling shapes game. By Cyrille de Brébisson (HpMad). 2013/12/22

 Tetris 1.5   (details) Prime ENG   7KB/18KB Another Tetris implementation. By Chong Wang. 2017/06/10

 The Price Is Right Wheel Simulation   (details) Prime ENG   6KB/11KB Simulates the Showcase Showdown round of the game show The Price Is Right. The wheel consists of amounts from 5 cents to 1 dollar in increments of 5 cents. The goal is to get closest to \$1.00 without going over. On the game show, the winner of the Showcase Showdown advances to the final Showcase round. By Eddie W. Shore. 2018/06/17

 The Two Train Problem   (details) Prime ENG   36KB/3KB Two trains are heading towards each other, on their own separate train track. Each train has going at their own speed (velocity). The trains start out a distance apart. This program calculates when and where the trains will cross over the same spot. By Eddie W. Shore. 2018/03/01

 The Valley   (details) Prime ENG   232KB/110KB This is a port of "The Valley" game to the Prime. The original version was printed as a program listing in the April 1982 edition of Computing Today magazine for the Commodore PET. By Mark Bush. 2021/09/25

 Thermal Noise (Johnson-Nyquist Noise)   (details) Prime ENG   3KB/1KB Calculates the RMS (root-mean-square) voltage of a resistor at a certain temperature. Thermal noise, also known as Johnson-Nyquist Noise is generated when the resistor has a temperature above absolute zero. It also calculates the noise power in decibels. By Eddie W. Shore. 2015/08/23

 Thermodynamics (Fluid-Phase Equilibria) 1.1   (details) Prime ESP   12KB/138KB Allows you to calculate the fugacity from a single component (pure) or mixture, using any of the following state equations: "virial", "Van der Waals", "Redlich-Kwong", "Redlich-Kwong-Soave", "Peng-Robinson". Also allows you to calculate the activity coefficient, using "Margules", "Van Laar", "Wilson", "UNIQUAC", "UNIFAC". ("Infinite dilution activity coefficients" method). By Gonzalo Menayo. 2019/12/29

 ThermoKit 1.2   (details) Prime ESP   689KB/29KB Solves cubic equations of state, calculates residual properties and fugacity coefficients for a single specimen or a mixture; optionally, you can enter the binary interaction parameters Kij.. The app also includes spreadsheets for the Virial equation of state and four functions to calculate MCPH, ICPH, MCPS and ICPS. By Jhonatan Peretz. 2021/04/10

 Throwing Dice   (details) Prime ENG   4KB/2KB Simulates rolling two six-sided dice. By Eddie W. Shore. 2018/06/17

 Tic Tac Toe   (details) Prime FRA   2KB/8KB Simple Tic Tac Toe game. By Mickaël Nicotera. 2013/12/22

 Tic-Tac-Max 1.0   (details) Prime ENG   136KB/13KB The developer wanted to learn about the miniMax algorithm, so he wrote this tic-tac-toe game and implemented miniMax so you could play a game against your Prime, with a full touch screen interface. It checks through 7! (5040) possible moves to make its move. By Daniel S. Maupin. 2017/02/10

 TimeCalc   (details) Prime ENG   3KB/5KB A simple time calculator to add or subtract time in a 24 hour clock. By Bernard Michaud. 2017/12/28

 TopoAC 1.76   (details) Prime ESP   800KB/210KB Program for topographic calculation with tools of data collector, calculation of coordinates, areas, courses, intersections, plotting, generation of DXF, import and export of points, and more. By Jorge Aguero. 2022/07/31

 Topomining 2.0   (details) Prime POR   1309KB/329KB Several mining math tools for calculating topography, including the 2D planimetric method (entering the initial and final coordinates in 2D, or the initial coordinate and azimuth and distance) and the 3D tachimetric method (for the azimuth, course, vertical angle, horizontal angle, real distance, and slope, or the absolute coordinates, vertical distance, horizontal distance, and vertical angle). By Danny Davis Sosa Lozano. 2017/08/21

 Touch Periodic Table 3.3.2a (10637+)   (details) Prime ENG FRA ESP   257KB/165KB A comprehensive touch-controlled periodic table of the elements with details about each element and plotting of details. PDF documentation. By Mickaël Nicotera, Miguel Toro, Eric Keppel and others. 2020/04/11

 Touch Periodic Table - Improved   (details) Prime ENG   20KB/28KB An improved version of an older version of Mickaël Nicotera's touchscreen periodic table of elements. Does not work with more recent ROM versions. By Mickaël Nicotera and Miguel Toro. 2014/10/25

 Tower of Hanoi   (details) Prime ENG FRA   7KB/12KB Tower of Hanoi game that allows you to enter a challenge time, and calculates the average time per move or enter an average move time and calculate how long a practical activity with real objects will need. It implements the minimum 3-towers solution to the problem. It lists the required moves in lists L1 (from) and L2 (to). There is no animation of the contents of each tower. By Stephen Lewkowicz (G1CMZ). 2016/08/06

 Towers of Hanoi   (details) Prime FRA   2KB/9KB Simple implementation of the Towers of Hanoi game. By Vlad A.B. (Vlad_AB). 2013/12/22

 Trailblazer 0.0.7.1   (details) Prime ENG   32KB/87KB Make the ball jump down the track without falling off the edge. Fun! An early work in progress. Calculator must be in degrees mode or it will not run properly. Author unknown and others. 2020/12/30

 Trajectory   (details) Prime ENG   2KB/3KB Given Muzzle Velocity, and Muzzle Angle, the Horizontal Distance, Max Altitude, and Flight Duration are calculated. As with all of the author's spreadsheets, the blue text cells are the input data and the red text cells are the calculated output data. Note: The calculator must be in Degree mode. By Jim B. Williams. 2020/04/12

 Trapezoid Midsegment, Height, Area   (details) Prime ENG   2KB/2KB Calculates the midsegment, height, and area of a trapezoid. By Eddie W. Shore. 2017/06/24

 Trapezoid Rule Using Distinct Points   (details) Prime ENG   33KB/2KB Uses the Trapezoid Rule to estimate the area of any surface, given a list of measurements and the increment between the measurements. By Eddie W. Shore. 2019/06/17

 Trapezoidal Channel Calculator   (details) Prime ENG   6KB/16KB A simple trapezoidal channel calculator. Uses fsolve to solve Mannings and critical depth equations. For rectangular channels, use a side slope z=0. For triangular channels, use a bottom width b=0. Also calculates average shear stress. By Gene Shiomoto. 2019/07/20

 TRAPRULE   (details) Prime ENG   2KB/1KB Using the Trapezoidal Rule, approximates the integral of f(X): ∫f(X)dX=h/2*(f(a)+2*Σf(x_I)+f(b)), where a is the lower limit, b is the upper limit, n is the number of intervals, h is (b–a)/n, and x_I is a+h*I where I is from 1 to n-1. By Eddie W. Shore. 2016/08/06

 Treasure Hunt   (details) Prime ENG   82KB/6KB Modeled after the game board in the 1950s-1980s television show Treasure Hunt. Presents you with 12 boxes, one has \$50,000. Select a box by just tapping the screen. You will then be presented with a sure thing. A choose box will be presented where you make your choice to take the sure thing or take a risk and open the box. Good luck! By Eddie W. Shore. 2018/06/03

 Triangle   (details) Prime ENG   3KB/21KB A simple spreadsheet to solve for three unknowns given three known. (3 Sides and 3 Angles) As with all of the author's spreadsheets, the blue text cells are the data input cells and the red text cells are the calculated output cells. By Jim B. Williams. 2020/01/16

 Triangle Solver   (details) Prime ENG   1184KB/29KB Triangle solver that allows you to set the accuracy of the result, solve right triangles, solve any other triangles, calculate the length of a line using two coordinate points, and calculate the centroid of a triangle plus the three line lengths. Includes PDF documentation. By Bernard Michaud. 2022/08/07

 Tron   (details) Prime ENG   4KB/12KB A two-layer game where you must avoid hitting the opponent's trail. By David Traum. 2017/08/17

 Truss 2-D and 3-D 1.04   (details) Prime ENG   227KB/13KB Finds the longitudinal forces in a 2-dimensional- or 3-dimensional truss by means of solving the matrix of equations of equilibrium at the nodes for the entire system. By Claus Martin Dachselt. 2019/02/23

 Tunnel 1.05   (details) Prime ENG   2KB/5KB This is the official release of the Prime port of the 39gII Tunnel clone written in BASIC, now adapted for the larger screen and color display. This new version adds speed throttling to ensure that the game runs as close as possible to the same speed as the original Prime on both the emulator and G2 hardware revision of the calculator. It is probably the first ever game ever made available for download for this calculator model. It isn't meant to show coding skills, especially considering the game was made before the author's knowledge of the DIMGROB_P and BLIT_P commands (although an intro transition using them was added afterward), but as you'll see on-calc, even if the entire screen content must be refreshed every frame, it still gets a high frame rate, because of how incredibly fast the calculator is, even with redrawing the entire screen rectangles and score text every frame. As for the multicolor and 3D-ish text effects, they are possible because the HP Prime lets you use text with no background, so all you have to do is superpose multiple copies of that text, gradually changing its color and position through a FOR loop. This also lets you use bold text. To play, just use the UP and DOWN keys and quit with ON. By Kévin Ouellet (DJ Omnimaga). 2020/06/06

 TVM with Odd Period 2.0   (details) Prime ENG   7KB/15KB Calculates time value of money for a loan with an "odd period" after the first payment. It calculates payment or rate (APR, Europe: TAEG) and interest for the days in the odd period, inputting the number of days or calculating a difference between two dates. By Salvo Micciché (salvomic). 2016/08/03

 Two Port Network Transistor Configuration Conversions   (details) Prime ENG   87KB/3KB Converts h-parameter matrices for the following configurations of two-port transistor networks: Common Base Transistor Configuration (CB), Common Emitter Transistor Configuration (CE), and Common Collector Transistor Configuration (CC). By Eddie W. Shore. 2019/03/25

 ULAM   (details) Prime ENG   1KB/1KB Uses Ulam's Conjecture to determine the number of steps it takes to reduce an integer N to 1. By Eddie W. Shore. 2013/10/05

 Ulam Spiral   (details) Prime ENG   4KB/1-2KB Several programs to graph different Ulam spirals. Author unknown. 2014/02/01

 Unit Circle   (details) Prime ENG   1KB/3KB Diagram of the unit circle for trigonometric math. By Mickaël Nicotera. 2013/10/05

 UnitConv 1.0   (details) Prime ESP   4KB/11KB Unit converter that is faster and more flexible that the one by default in the calculator. It doesn't have all the units, but it have some new units that are commonly used in engineering. By Ulises Szumega. 2021/09/12

 Units Convert H&WLabs 1.1   (details) Prime ESP   18KB/52KB Converts units between SI and the US systems. By Hebert Poma Vidal. 2016/09/11

 Units48 1.0   (details) Prime ENG   35KB/86KB Allows you to do unit conversions in a manner similar to the 48. By Didier Lachieze. 2018/12/27

 US Prime Keyboard Layout   (details) Prime ENG   265KB Replacement United States keyboard layout for Windows, adding the ability to easily type special characters specifically for the HP Prime using the AltGr (right Alt) key. For example, characters such as Σ, ∞, ∫, ∂, →, √, ▶, and others may be easily typed when this is enabled. Also, dead keys are added to the AltGr plane for typing characters with diacritical marks, such as Ł and é. Tested with Windows 7 and Windows 10. By Eric Rechlin. 2017/03/18

 VAN y TIR 1.1   (details) Prime ENG   2KB/4KB Simple program that calculates VAN and TIR for engineering economics. By Cristhiam Vásquez. 2020/04/11

 VAN-TIR 1.0   (details) Prime ESP   396KB/32KB Calculates the net present value NPV and the internal rate of return IRR knowing the cash flow and the investor interest, to quickly evaluate investment projects. By Edwin Saul. 2019/08/29

 Vapor-Liquid Phase Equilibrium 1.0   (details) Prime ENG ESP   536KB/49KB Calculates the liquid-vapor phase equilibrium of a real binary mixture, using the NRTL method. By Malcom Castro Quiroz. 2019/08/23

 VaporHP 1.1   (details) Prime ENG ESP   504KB/220KB Steam tables with thermodynamic properties of water and steam calculated from the industrial standard IAPWS-IF97. By Edwin Córdoba. 2021/05/23

 VaporHP SS 2.5   (details) Prime ESP   59KB/292KB Choose two parameters among pressure, temperature, specific volume, enthalphy, entropy, and steam fraction, and get the others as a result. Unknown original author and Manuel Ángel Suárez Álvarez. 2020/07/05

 Vector Calculus Functions   (details) Prime ENG   5KB/8KB A collection of some of the most common Vector Calculus functions for rectangular, cylindrical, and spherical coordinates. Includes curl, div, Jacobian, Laplacian, unit normal, and more. By Hamorabi. 2019/12/29

 Vectors   (details) Prime ENG   2KB/5KB Performs vector calculations, adding and subtracting polar and Carstesian vectors (on 2 axis). Also has a graph preview. By Raphaël Chatelain. 2021/01/17

 Vertical Curve 1.01   (details) Prime ENG   2KB/6KB Creates a list with station and elevation information in L0. If a value between the VPC and VPT is entered in "Special Station", it returns data for that station only, if left at 0 the entire curve will be returned at the interval specified. By C.D. Dodds. 2014/10/18

 Very Simple Neural Network   (details) Prime ENG   3KB/4KB A very simple neural network. It is surprisingly slow (about 20s), even on a G2 Prime. By Mark Power. 2019/12/29

 VigaG 4.3   (details) Prime ENG ESP   1422KB/333KB An application for the calculation of continuous beams, it is possible to enter different configurations of loads and supports, as a result it presents the reactions, equations in each of the ranges, the shear diagram, the moment diagram, the angle diagram, the deflection diagram and the maximum and minimum points of each diagram. By Edwin Córdoba. 2020/06/06

 Vigas 01 0.5.1   (details) Prime POR   26KB/250KB Calculates geometric properties of beams, including static moment and moment of inertia. Calculates the results of the supports, shear force, and bending moment. Fits linear, trapezoidal, and straight loads. It can also graph and display calculations, both by integration and section cuts. By Francisco Cassio Sena Paiva. 2019/10/16

 Vincenty Inverse Solution 1.0   (details) Prime ENG ESP   4KB/8KB Test of a very basic part of an old GPS navigation applications, the Vincenty inverse solution, which calculates distances between points on the Earth with 1 mm precision. Author unknown. 2018/09/25

 Virtual Keyboard 1.3b (Patched Twice)   (details) Prime ENG   304KB/57-58KB An on-screen virtual keyboard, including QWERTY and Greek layouts. Also includes a version patched to work with ROM version 13333 and a version patched to be aware of theme changes (dark vs light). By Freire and others. 2020/12/30

 Virtual Keyboard 2.0   (details) Prime ENG   10KB/17KB On-screen virtual keyboard, which can be called from anywhere via the user keyboard. Author unknown. 2017/04/30

 Virtual Keys   (details) Prime ENG   12KB/28KB An on-screen touch keyboard with QWERTY option. Author unknown. 2017/04/30

 Virtual Keys (Dark Theme) 1.3b   (details) Prime ENG   283KB/58KB An on-screen virtual keyboard with a dark theme, including QWERTY and Greek layouts. By Freire and Vitor Mascarenhas. 2018/09/09

 Virus 2.1   (details) Prime ENG   11KB/6-36KB An implementation of a software virus for the Prime. Includes an antivirus program, too. Do not run this unless you want to risk losing data on your calculator. By Chong Wang. 2017/06/13

 Von Koch Fractals   (details) Prime ENG   2KB/3KB Generates Von Koch snowflake fractals. By Damien Unknown. 2013/12/28

 Vunit 1.0   (details) Prime   1KB/1KB Program to get a unit vector from a vector with N elements. By David González Gamboa. 2017/02/10

 WaitLab   (details) Prime ENG   4KB/3KB Utility for examining Wait(-1) command response to touch pad gestures. WaitLab prints the results of Wait(-1) in a continuous loop with a built in pause in the loop of Dly seconds. This simulates functional code that checks for user input and takes Dly seconds to process, then loops back and checks again. By JF Sather. 2014/10/19

 Wallis-Wasicki Pi Formula   (details) Prime ENG   5KB/3KB Uses the Wallis-Wasicki formula to calculate pi. By Pinkman and Gerson Washiski Barbosa. 2020/07/05

 Walrus Animation   (details) Prime ENG   20KB/36KB A wave, sky, and flying walrus animation that could be used in a future game and runs at about 40 frames per second. By Kévin Ouellet (DJ Omnimaga). 2017/02/16

 Water Vapor Tables   (details) Prime ENG   6KB/21KB Provides water vapor tables, with a series of functions that take the temperature as input. Also provides a vapor temperature function to take the pressure and change it to the temperature. By Stefano Rapisarda. 2017/12/17

 Waterfall Animation   (details) Prime ENG   2KB/2KB Background boxes with falling water. There is random mist coming from the water. By Eddie W. Shore. 2014/02/01

 Wattmetre AD8318   (details) Prime FRA   12KB/35KB Calculates wattage given voltage for an AD8318 logarithmic detector. By Pierre Berly. 2017/09/20

 Web Conversion for CSS 1.0   (details) Prime ENG ESP   16KB/5KB Converts the differents units of length used in CSS3. Converts between px, em, % and pt. By Andres F Rodríguez Rojas. 2019/04/02

 Weiqi 2.0   (details) Prime ENG   5KB/11KB Two-player implementation of Weiqi. By Chong Wang. 2017/06/12

 Weird Clock   (details) Prime ENG   18KB/3KB Not really a program, but a way of using the TICKS function in a funny and simple way to plot a clock. By Pinkman. 2020/10/06

 Wheatstone   (details) Prime ENG   2KB/2KB Does calculations for a Wheatstone bridge circuit. Given the four resistances and the input voltage, calculates the voltages in the middle and each side of the bridge. By Eddie W. Shore. 2017/04/27

 When   (details) Prime ENG   1KB/1KB Command that basically does an if-true, then do X, else do Y. By Mickaël Nicotera. 2017/04/27

 Wilson Score   (details) Prime ENG   2KB/2KB Calculates the Wilson Score interval, a good way for ranking things like popularity and skill of video game players, given the total number of trials and the number of "likes". By Eddie W. Shore. 2017/08/25

 Windows 7 Screensaver   (details) Prime ENG   4KB/23KB A replica of the default Windows 7 screensaver, displaying the Windows 7 logo at random locations on the screen. By Mickaël Nicotera. 2017/04/27

 Winsorising   (details) Prime ENG   2KB/1KB Winsorising or Winsorisation is the transformation of statistics by limiting extreme values in the statistical data to reduce the effect of possibly spurious outliers. This program Winsorises the data. Values must be already in Statistic 1var (D1 matrix). The program puts the resulting items in D2. By Salvo Micciché (salvomic). 2016/08/04

 Wire Sections   (details) Prime ENG   2KB/3KB Four functions to convert wire sections between kcmil and mm², and between AWG and mm². Author unknown. 2018/09/09

 Wordle 1.1   (details) Prime ENG   332KB/244KB Guess the word in 6 tries or less. By Tony Gallo. 2022/02/27

 WorldData 2.00   (details) Prime ENG   10KB/35KB Given latitude and longitudes, calculates the distance between any two points on the Earth, approximating the planet as a sphere. Includes data for 40 major world cities. By Lang Zhou. 2019/01/17

 Wronskian   (details) Prime ENG   2KB/1KB Calculates the Wronskian of a matrix, producing the determinant or the Wronskian matrix. By Salvo Micciché (salvomic). 2015/08/23

 Z Astronomical Routines   (details) Prime ENG   5KB/6KB A few astronomical routines, to estimate a planet's temperature, calculate drag on a spacecraft, and calculate magnitudes. By Stephen Lewkowicz (G1CMZ). 2017/02/11

 Z Editor 0.3   (details) Prime ENG   7KB/6KB An early attempt at an improved text editor that adds search functionality. By Stephen Lewkowicz (G1CMZ). 2015/09/18

 Z LIGHTS 0.4   (details) Prime ENG   7KB/16KB Prime's answer to mobile phone flashlights. Given that the HP Prime has no external accessible lights, this program may be of little practical use, unless the lights go out while you are using your calculator. The design aim is a compromise between maximizing the limited illumination available, and including some information that a flashlight would not (the time the light was activated). By Stephen Lewkowicz (G1CMZ). 2017/11/12

 Z Periodic 2.1   (details) Prime ENG FRA   7KB/26KB Displays a simple periodic table of elements. By Stephen Lewkowicz (G1CMZ). 2016/08/04

 Z Std Maths 0.001   (details) Prime ENG   6KB/10KB Some standard mathematics routines, including base conversion, precision, and more. By Stephen Lewkowicz (G1CMZ). 2017/02/11

 Z UNITS 0.1   (details) Prime ENG   14KB/33KB Allows the user to convert many (but not all) HP units, with support for SI prefixes. It also defines some Planck units and converts data units. By Stephen Lewkowicz (G1CMZ). 2016/08/03

 Z-Factor 1.0   (details) Prime ENG ESP   193KB/13KB Thermodynamics Program. Given temperature, pressure and critical properties for a pure substance (gas or saturated condition); this calculates: compressibility factor “z”, volume, transience, and residual properties. PR and RK EOS are used. By Jesús Alberto Tamez García. 2020/04/11

 Ze Galactik Forge   (details) Prime FRA   130KB/134KB Game created for participation in a contest by TI-Planet. Author unknown. 2017/09/21

 ZIPP 0.6   (details) Prime ENG FRA   6KB/15KB G1CMZ's Immensely Practical Package, containing programs to do things like calculate the distance of a thunderstorm. Uses Z LIGHTS and Z UNITS. By Stephen Lewkowicz (G1CMZ). 2016/08/03

Part of the HP Calculator Archive,