hpcalc.org - HP 38 Archive

HP38 Files

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


There are 276 files totaling 80284KB in this category.

1-Var Inequalities   (details) 38 ENG   9KB/2KB
ScreenshotSolve inequalities using a number line.
By Hewlett-Packard. 1998/06/22

2x2 Systems   (details) 38 ENG   19KB/1KB
ScreenshotSolve 2X2 systems of linear equations using substitution, linear combination, and Cramer's Rule.
By Hewlett-Packard. 1998/06/22

3D-Graph   (details) 38 FRA   5KB/4KB
ScreenshotThree-dimensional plotter.
By Yves Quemener. 1998/08/26

Active Grapher   (details) 38 ENG   13KB/4KB
ScreenshotInvestigate rigid transformations of seven basic functions: y=x, y=x^2, y=x^3, y=|x|, y=x, y=1/x, and y=1/x^2.
By Hewlett-Packard. 1998/06/22

Allumet   (details) 38 FRA   2KB/3KB
Matches game.
By Cédric Messoumian. 1998/08/25

Alternating Bit Sum and Partial Sums   (details) 38 ENG   2KB/1KB
A program to insert symbolics in the Sequence App to reproduce the sequence A065359 and its partial sums A005536.
By Gerald Hillier. 2017/08/10

Amplitude / Period   (details) 38 ENG   16KB/2KB
ScreenshotInvestigate the parameters A and B to see how they effect the functions y = Asin(Bx), y = Acos(Bx), y = Atan(Bx), y = Asec(Bx), y = Acsc(Bx), y = Acot(Bx).
By Hewlett-Packard. 1998/06/22

An Interesting Irregular Sequence   (details) 38 ENG   2KB/1KB
A set of programs that generate an interesting irregular sequence, a generalized meta-Fibonacci sequence a(n) with parameters s=0 and k=5. This is A228297. Also generates A27868.
By Gerald Hillier. 2017/09/20

Angles   (details) 38 ENG   15KB/2KB
ScreenshotSolve for the missing angle given a pair of complementary angles, a pair of supplementary angles, or a triangle.
By Hewlett-Packard. 1998/06/22

Animation   (details) 38 ENG   24KB/12KB
ScreenshotAnimation of two seals flipping a ball back and forth. A lot of fun for a gifted group - if you'd like to compose your own then documentation is included in the ZIP files on how to produce animations on the calculator, and on the PC using the ADK (38G only).
By Colin Croft. 2003/05/20

Aplet Development Kit 1.01   (details) 38 ENG   325KB
Windows program for developing HP 38G aplets.
By Hewlett-Packard. 1998/06/22

Archimedes   (details) 38 ENG   10KB/2KB
ScreenshotExplore Archimedes' method for approximating the value of pi by comparing the area of a regular polygon to the area of the corresponding circumscribed circle.
By Hewlett-Packard. 1998/06/22

Area Model   (details) 38 ENG   12KB/2KB
ScreenshotMultiply first degree monomials and binomials.
By Hewlett-Packard. 1998/06/22

Arknoiid 1.0   (details) 38 ENG   17KB/18KB
ScreenshotGame where you bounce a ball up to hit blocks, and prevent the ball from falling out of the playing area.
By Jean-Yves Avenard and Cyrille de Brébisson (HpMad). 1998/05/24

Bandit   (details) 38 ENG   4KB/4KB
One Armed Bandit game.
By Johan Levander. 1998/09/12

Basic Functions   (details) 38 ENG   23KB/3KB
ScreenshotExplore stretches, shrinks, and translations of seven basic graphs.
By Hewlett-Packard. 1998/06/22

Battle of Ballistic   (details) 38 ENG FRA   10KB/8KB
ScreenshotAdaption of a game sometimes known as "Gorilla". A lot of fun but a bit slow, since it's written entirely in HPBasic.
By Vincent Hentsch. 2003/05/21

Bilou GSM Service   (details) 38 FRA   1KB/1KB
I'm not sure what this is.
By Andréas Thillosen. 1998/08/26

Binomial Probabilities   (details) 38 ENG   2KB/1KB
Program useful for students calculating Binomial Probabilities. It handles both individual and cumulative probabilities.
By Andy Vella. 1999/08/24

Bivariate Oddities   (details) 38 ENG   14KB/3KB
ScreenshotThis aplet contains sets of bivariate data which have the same summary statistics but totally different 'shapes' when graphed. They illustrate the need to rely on more than just the stats when deciding on whether a linear model is appropriate!
By Colin Croft. 1998/05/24

Bomb Track   (details) 38 ENG   1KB/1KB
Bomb Track song.
By Vincent B.. 1998/09/12

Broken Brain   (details) 38 FRA   1KB/1KB
Broken Brain game.
By Cédric Messoumian. 1998/08/25

Bubonic Plague   (details) 38 ENG   18KB/3KB
Bubonic Plague model aplet for biology. Which strategy is better: immunization or improved medicines? Also has information in Dutch.
By Joost van 't Spijker. 1998/10/31

Build Dir   (details) 38 ENG   1KB
C source code for a Unix program to build an HP 38G directory out of the header files in the current directory.
By Steve Dunham. 1998/08/26

Calibrating PLDL100   (details) 38 ENG   109KB
Word document showing how do calibrate the connection between the PLDL100 Data Logger.
Author unknown. 1998/05/24

Camember   (details) 38 FRA   1KB/1KB
Pie charting program.
By Andréas Thillosen. 1998/08/26

Cars 1993   (details) 38 ENG   18KB/2KB
ScreenshotExplore relationships among the different data to investigate different cars, the cost, mpg, etc.
By Hewlett-Packard. 1998/06/22

Central Limits Theorem   (details) 38 ENG   41KB/2KB
One of the most fundamental theorems in the study of statistical inference is the Central Limits Theorem. This states basically that the means of successive random samples taken from a population will be normally distributed whatever the underlying parent distribution. This aplet illustrates this and that the standard deviations are related by ratio. Sampling can be done from different parent distributions and the resulting collection of means compared to the equivalent Normal distribution. It is fairly slow to execute because of the need for repeated sampling but would be quite useful to teachers.
By Colin Croft. 2003/05/20

Chain Rule   (details) 38 ENG   23KB/2KB
ScreenshotSchool activity for deducing the Chain Rule.
By Colin Croft. 1998/05/24

Chemistry   (details) 38 ENG   13KB/1+KB
Various science notes by multiple people plus an automated solubility table.
By Quin Pendragon. 1999/03/15

ChemProg   (details) 38 ENG   2KB/2KB
Two programs to find empirical formulas given mole ratio or molar mass.
By Andrew Hollett. 1999/05/19

Chords   (details) 38 ENG   16KB/4KB
ScreenshotThis aplet uses chords of diminishing lengths to find the limiting gradient at a point. A worksheet leads the student into discovering differentiation. (Used to be called 'A Different Slant').
By Colin Croft. 2003/05/19

Christmas Trees   (details) 38 ENG   10KB/2KB
ScreenshotSchool activity for investigating some interesting graphs which create Christmas tree style plots.
By Colin Croft. 1998/05/24

Coin Toss   (details) 38 ENG   51KB/1KB
ScreenshotThis aplet investigates the common charity game consisting of tossing of a coin onto a square grid. It requires only knowledge of quadratic functions and can be used at a number of levels: to illustrate the convergence of experimental values towards theoretical ones, to investigate fitting a quadratic curve to experimental data, and to introduce the idea of a probability function.
By Colin Croft. 1999/03/15

Collisions   (details) 38 ENG   10KB/2KB
ScreenshotThis aplet takes a vector problem involving two objects having an initial position and velocity and analyses it as 'closest approach' style problem. A test tool rather than a teaching tool.
By Colin Croft. 1999/03/15

COMB Replacement   (details) 38 ENG   2KB/1KB
A replacement for the COMB command that handles the A < B case without an error.
By Gerald Hillier. 2017/11/20

Combat de touches   (details) 38 FRA   1KB/2KB
Key combat.
By Andréas Thillosen. 1998/08/25

Complex Roots   (details) 38 ENG   10KB/1KB
School activity to find the nth roots of any complex number and see them graphed on the Argand Plane.
By Andy Vella. 1999/03/15

Conic Plotter   (details) 38 ENG   27KB/2KB
ScreenshotInvestigate the conic sections in general and in standard form.
By Hewlett-Packard. 1998/06/22

Conics - Polar Form   (details) 38 ENG   26KB/1KB
ScreenshotInvestigate the polar form of the graphs of the conics to discover how changing the eccentricity and distance from the focus to the directrix effects the graph of the conic.
By Hewlett-Packard. 1998/06/22

Convert   (details) 38 ENG   3KB/2KB
Converts between metric and customary measurements.
By Robert Palmer. 1998/08/26

Coordinate Geometry   (details) 38 ENG   16KB/3KB
ScreenshotFind the midpoint, distance, and slope of a given line segment.
By Hewlett-Packard. 1998/06/22

Cosine   (details) 38 ENG   1KB/1KB
Solves a triangle using the Law of Cosines.
Author unknown. 1998/09/06

Curve Area   (details) 38 ENG   37KB/2KB
ScreenshotIt uses upper and lower rectangles to find the areas under supplied curves. A worksheet then takes the student through the process of deducing the rules of integration.
By Colin Croft. 2003/05/20

Dandelions   (details) 38 ENG   119KB/2KB
ScreenshotThis aplet uses visual methods to illustrate and introduce the Poisson distribution, through the sowing of dandelion seeds into a large patch of ground, which is then broken up into unit squares.
By Colin Croft. 1999/03/15

DDE48   (details) 49/50 48 39/40 38 28 ENG   18KB
Command line program to transfer a HP program file into Emu48. This program is especially made for developers which are using a customize editor and want to transfer the output file easily to Emu48 and for developers which want to add the interface into own applications. This update is necessary for recent versions of Emu28, Emu42 and Emu48.
By Christoph Gießelink. 2008/05/11

Decimals   (details) 38 ENG   23KB/1KB
ScreenshotExplore patterns and symmetry by ordering pairs of digits from the decimal expansion of certain fractions that have periodic decimals.
By Hewlett-Packard. 1998/06/22

Deduction   (details) 38 FRA   1KB/2KB
Deduction.
By Andréas Thillosen. 1998/08/25

DelApt   (details) 38 ENG   1KB/1KB
Deletes stubborn aplets without having to reset the calculator.
By Quin Pendragon. 1999/03/15

Demineur I   (details) 38 FRA   1KB/2KB
Minehunt game.
By Andréas Thillosen. 1998/08/25

Demineur II   (details) 38 FRA   1KB/2KB
A better Minehunt game.
By Cédric Messoumian. 1998/08/25

Diamonds 38 1.3   (details) 38 ENG   44KB/12KB
Pick up all the diamonds, and advance to the next level (includes 50 levels). Inspired by Diamonds for the Macintosh by Oliver Dreer.
By Doug Cannon and Detlef Müller. 1998/10/20

Digit Reversal   (details) 38 ENG   1KB/1KB
For a given natural number input, this returns the digit reversed number in Ans and variable T. This is OEIS A004086.
By Gerald Hillier. 2017/10/04

Doom III   (details) 38 FRA   1KB/1KB
Practical joke pretending to be Doom III.
By Andréas Thillosen. 1998/08/26

Dot to Dot   (details) 38 ENG   14KB/1KB
ScreenshotExplore points, slopes and equations of lines that enclose the figures. It is also possible for the student to investigate the piecewise functions that would create the exact drawing.
By Hewlett-Packard. 1998/06/22

Drill Core   (details) 38 ENG   18KB/2KB
ScreenshotExplore relationships among the different data to predict the percent of iron in a given sample.
By Hewlett-Packard. 1998/06/22

Drives   (details) 38 FRA   1KB/1KB
Tracer of derived functions.
By Cédric Messoumian. 1998/08/26

E48INI2REG   (details) 49/50 48 39/40 38 ENG   15KB
Since Emu48 v1.49 of the Win32 version the saving location of the emulator settings changed from the Emu48.ini file to the registry at HKCU\Software\Emu48. So when you update Emu48 from v1.48 and earlier to the latest version you will lose all your settings. The program E48INI2REG.exe copies these settings automatically to the new location.
By Christoph Gießelink. 2009/08/29

Editeur   (details) 38 FRA   2KB/5KB
This is a program, written in French but easily understandable, that allows you to automate the entry and playing of music. Basically it asks you how many notes in the piece and then loops through asking, for each note, what note it is (do, re, mi etc), and which octave. You can also choose to enter a rest. The result is stored into L1 (one of the lists) and can then be played. Quite simple but easier to use than programming it yourself.
By Damien Iggiotti. 2003/05/20

Effects on f(x)   (details) 38 ENG   15KB/1KB
Graph functions where negations and absolute values are applied to the function and its inputs.
By Hewlett-Packard. 1998/06/22

Effet Moire   (details) 38 FRA   1KB/1KB
An effect mirror.
By Andréas Thillosen. 1998/08/26

Elasticity   (details) 38 ENG   9KB/4KB
Economics aplet. Includes Dutch documentation.
By Joost van 't Spijker. 1998/10/31

Empty Aplet   (details) 38 ENG   35KB
An empty aplet for use as a base for creating your own aplets.
By Jean-Yves Avenard. 1998/05/24

Emu H38 2.1   (details) 38 ESP   364KB
Horizontal-style KML script for Emu48 to emulate the HP 38 series with a resolution of 800x600 or higher.
By Benjamin Perianes. 2001/11/17

Emu38 1.01   (details) 38 ENG   74KB
HP 38G emulator for Windows 95 and NT based on Emu48. Requires a ROM dump (see below).
By Sebastien Carlier and Jean-Yves Avenard. 1998/05/24

Emu48 1.65Get It   (details) 49/50 48 39/40 38 ENG   673KB
The latest version of the best HP 48/49/40/39/38 emulator for Win9x/NT4/2000/XP. Also has an assembly language disassembler and debugger. Includes an installer with all necessary scripts and graphics files, as well as GPL source code, but it requires a calculator ROM dump, downloadable separately.
By Christoph Gießelink and Sebastien Carlier. 2022/07/31

Emu48 Docs in Spanish 3.1   (details) 49/50 48 39/40 38 ESP   361KB
Illustrated manual in Spanish, with more than 50 pages of detailed information about the Emu48 emulator. In Adobe PDF format.
By Benjamin Perianes. 2002/09/22

Emu48 Executables 1.65Get It   (details) 49/50 48 39/40 38 ENG   174KB
Executables only for Emu48 v1.65 (IA32 platform). No KML files included.
By Christoph Gießelink. 2022/07/31

Emu48 for Android 2.6Get It   (details) 49/50 48 39/40 38 ENG   26237KB
Android port of Emu48+ 1.63, to emulate the 38G, 39G, 40G, 48S, 48SX, 48G, 48G+, 48GX, and 49G, as well as the 39g+, 39gs, 40gs, 48gII, 49g+, and 50g. Also available from Google Play.
By Régis Cosnier. 2022/08/28

Emu48 for Android Source Code 2.6   (details) 49/50 48 39/40 38 ENG   22411KB
Source code for the Android port of Emu48+ 1.64, to emulate the 38G, 39G, 40G, 48S, 48SX, 48G, 48G+, 48GX, and 49G, as well as the 39g+, 39gs, 40gs, 48gII, 49g+, and 50g.
By Régis Cosnier. 2022/08/28

Emu48 for MacOS X 1.25 Beta 4   (details) 49/50 48 39/40 38 ENG   476KB
Mac OS X port of the excellent Windows Emu48 (SP25) by Christoph Giesselink and Sebastien Carlier. For PowerPC systems only. Carbonized from the classic version by Pierre Tardy for Mac OS 8/9.
By Sebastien Carlier, Christoph Gießelink, Da Woon Jung and others. 2017/09/23

Emu48 for MacOS X Source Code 1.47+ Beta   (details) 49/50 48 39/40 38 ENG   433KB
Source code for the Mac OS X port of the excellent Windows Emu48 (SP47+) by Christoph Giesselink and Sebastien Carlier. Carbonized from the classic version by Pierre Tardy for Mac OS 8/9.
By Sebastien Carlier, Christoph Gießelink, Da Woon Jung and others. 2017/09/23

Emu48 for Pocket PC and Windows Mobile 1.25Get It   (details) 49/50 48 39/40 38 ENG   202KB
All-new emulator of the 38/39/40/48/49 that runs on Pocket PC 2002, Windows Mobile 2003, 5.0, and 6.0 Professional (ARM Platform). Based on Emu48 1.56 for Windows.
By Christoph Gießelink. 2014/10/18

Emu48 for Pocket PC and Windows Mobile (Installer) 1.25   (details) 49/50 48 39/40 38 ENG   2176KB
Full installation package for the all-new emulator of the 38/39/40/48/49 that runs on Pocket PC 2002, Windows Mobile 2003, 5.0, and 6.0 Professional (ARM Platform). Now includes a WVGA bitmap and script for the 48GX and 49G. Based on Emu48 1.56 for Windows.
By Christoph Gießelink. 2014/10/18

Emu48 GCC Version 55   (details) 49/50 48 39/40 38 ENG   10KB
Update for the Emu48 source code that allows you to compile Emu48 with GCC instead of Microsoft Visual C++.
By Christoph Gießelink. 2013/09/14

Emu48 Turn-key Calculator package (w/DDE execute) 1.51   (details) 49/50 48 39/40 38 ENG   1017KB
All-in-one installer for working Emu48 calculator. Includes improved Emu48 emulator (with Windows Explorer integration patch, see below), file association for *.e48 files, Start menu / desktop shortcuts, PanuWorld's Swedish/Finnish keyboard mapping (optional), and HP48G ROM image. Nothing else is needed for working Emu48 calculator. This patched version of Emu48 1.51 is integrated with Windows Explorer using DDE: If you have Emu48 calculator already running, reopening a shortcut will NOT start another Emu48 but shows the existing one. This improves the usability of Emu48 in daily work. Full source code and diff file (difference with official Emu48 1.51) included.
Author unknown. 2012/09/15

Emu48+ Service Pack 64Get It   (details) 49/50 48 39/40 38 ENG   596KB
Emu48 1.64+ patch to be installed on top of a regular installation of Emu48. Adds emulation of the ARM-based calculators, including the 39g+, 39gs, 40gs, 48gII, 49g+, and 50g. Based on Emu48 1.65.
By Christoph Gießelink and Cyrille de Brébisson (HpMad). 2022/07/31

Engraisn   (details) 38 FRA   1KB/1KB
Measurements of manure NPK (???).
By Cédric Messoumian. 1998/08/26

Equation   (details) 38 FRA   1KB/1KB
Generator of Cartesian equations.
By Cédric Messoumian. 1998/08/26

Euclidean Division   (details) 38 ENG   139KB/1KB
I'm not really sure what this is supposed to be; something about Euclidean Division
By Bernard Parisse. 1998/05/24

Eurocalculator   (details) 38   2KB/4KB
This program is useful to convert European currency values into each other and to the Euro.
By Klaas Nekeman. 2002/05/28

Factor 3rd Degree   (details) 38 FRA   1KB/1KB
Factorization of third degree polynomials.
By Cédric Messoumian. 1998/08/26

Factoring   (details) 38 ENG   4KB/2KB
Factor a polynomial of degree one, two, three or four. You can plot its graph and look at its factors. Has some documentation in Dutch as well.
By Joost van 't Spijker. 1998/10/31

Factoring   (details) 38 ENG   14KB/2KB
ScreenshotSymbolically factor second degree polynomials in the form Ax^2+Bx+C.
By Hewlett-Packard. 1998/06/22

Factors   (details) 38 ENG   2KB/1KB
A small program (not an aplet) which simply finds the factors of a given number and stores them into M1. Download it into the Program Catalog.
By Barry van Oudtshoorn. 2017/07/25

Fibonacci   (details) 38 ENG   20KB/2KB
ScreenshotDetermine an approximation for the golden mean using the ratio of width to length of the sides of the golden rectangles.
By Hewlett-Packard. 1998/06/22

File Transfers   (details) 38 ENG   11KB
Information on transferring files to and from an HP 38G, including an HP 48 program to send a file to an HP 38G.
By Steve Dunham. 1998/08/26

Fonction   (details) 38 FRA   1KB/1KB
Resolutions of circular functions.
By Andréas Thillosen. 1998/08/26

Food Energy   (details) 38 ENG   77KB/11KB
School activity for determining energy in food with an HP 38G.
By Colin Croft. 1998/05/24

For How Long?   (details) 38 ENG   3KB/3KB
Tells how long you have been alive.
By Per Hansson. 1998/09/12

Freezing Point of Water   (details) 38 ENG   162KB/11KB
School activity for finding the freezing point of water with an HP 38G and the PLDL100 data link.
By Colin Croft. 1998/05/24

French Aplets   (details) 38 ENG   15KB/1-6KB
Some French Aplets, without documentation: "La chute libre," "Detect radioactive," "Electrolyse 1," and "Electrolyse 2."
Author unknown. 1998/08/03

Function 3D   (details) 38 ENG   15KB/6KB
Screenshot3D plotting program to display and investigate graphs of the form z=f(x,y). These are expressed as wireframe surfaces, in 3D space. The process of plotting is very slow but the results are excellent.
By Quin Pendragon. 1999/03/15

Function Deluxe   (details) 38 ENG   50KB/5KB
ScreenshotA copy of the Function aplet with a vast number of extra features added via an amended VIEWS menu
By Benjamin Kosta Pazolli. 2017/07/25

Function Plus   (details) 38 ENG   7KB/1KB
Adjusts axes to nice values so cross-hair 'jumps' are to useful points rather than horrible decimals. Trig gives \pi fractions.
By Colin Croft. 2003/05/20

Games   (details) 38 ENG   8KB/1KB
Various games, including Battleship, Warfare, Earthworm, and more.
By Quin Pendragon. 1999/03/15

Gas Laws 1   (details) 38 ENG   291KB/11KB
School activity for gas laws with an HP 38G and the PLDL100 data link.
By Colin Croft. 1998/05/24

Gas Laws 2   (details) 38 ENG   266KB/11KB
School activity for gas laws with an HP 38G and the PLDL100 data link.
By Colin Croft. 1998/05/24

GCD   (details) 38 ENG   2KB/1KB
Computes the greatest common divisor of two integers a and b.
By James Donnelly. 1998/05/24

GP Solver   (details) 38 ENG   1KB/1KB
Simply a copy of the Solve aplet with the relevant equations for geometric progressions pre-loaded. You can set it up easily yourself if you want to.
By Colin Croft. 1998/05/24

Gravity   (details) 38 ENG   4KB/4KB
Explore the effect of gravity on the vertical position and velocity of a falling object.
By Colin Croft. 1998/10/31

Grokwik's Real 38G 1.0   (details) 48 38   373KB
An Emu48 skin and KML to emulate the 38G. Based on a real photo of the calculator.
By Grokwik. 2007/08/04

Grouped Data   (details) 38 ENG   18KB/5KB
This aplet calculates and displays measures of central tendency and spread for data which has been grouped into intervals. The user puts the interval mid-points into C1, the frequencies into C2 and the aplet will display the mean, proportional median, lower and upper quartiles and various other values. The user can also perform calculations such as finding the values which cut off the top 15% of data, the middle 30% etc.
By Colin Croft. 2003/05/20

Guess Rational   (details) 38 ENG   15KB/4KB
ScreenshotWrite the equation of a rational function given horizontal and vertical asymptotes and a root.
By Hewlett-Packard. 1998/06/22

Guess the Line   (details) 38 ENG   12KB/2KB
ScreenshotWrite the equation of a line in slope-intercept form when given two points.
By Hewlett-Packard. 1998/06/22

Hapaman 1.1Get It   (details) 38 ENG   6KB/6KB
ScreenshotGood PacMan clone. Has lots of levels and sound, and will keep you entertained for hours.
By Davor Jadrijevic and Detlef Müller. 1998/10/20

High-Low   (details) 38 ENG   2KB/1KB
Number guessing game.
By James Donnelly. 1998/05/24

Hill's Encryption System   (details) 38 ENG   1KB/1KB
Implements Hill's Cypher system, which is a polygraphic substitution cipher based on linear algebra.
By Gerald Hillier. 2017/03/04

Horloge   (details) 38 FRA   1KB/1KB
An analog clock.
By Andréas Thillosen. 1998/08/26

How To Create An HP 38G Aplet   (details) 38 ENG   28KB
Tutorial with examples for creating an HP 38G aplet.
By James Donnelly. 1998/05/24

HP 38 entries, PDF extract from the Database 2.11   (details) 38 ENG   549KB
All HP 38 entries in the Entry database, as a PDF file.
By Carsten Dominik, Thomas Rast, and Eduardo M. Kalinowski. 2005/05/30

HP 38G Curves Collection   (details) 38 ENG   23KB/1KB
Contains many aplets with curves for students to explore.
By James Donnelly. 1998/05/24

HP 38G Entries in PDF Format   (details) 38 ENG   119KB
Hewlett Packard's supported entry points for the HP 38G in formatted Adobe PDF format.
By Hewlett-Packard. 1998/05/24

HP 38G Entries in Text Format   (details) 38 ENG   30KB
Hewlett Packard's supported entry points for the HP 38G in ASCII text format.
By Hewlett-Packard. 1998/05/24

HP 38G Memory Map   (details) 38 ENG   18KB
Links to some tools for programming System RPL aplets on the 38G, and provides a full map of the calculator's memory.
By Jean-Yves Avenard and Gerald Squelart (WarlockHP). 2017/06/13

HP 38G Press Release   (details) 38 ENG   4KB
April, 1995, press release announcing the introduction of the HP 38.
By Hewlett-Packard. 1997/08/21

HP 38G Revision A ROM   (details) 38 ENG   316KB
Revision A ROM dump of the HP 38G calculator for use with the Emu48 emulator.
By Hewlett-Packard. 2004/07/01

HP 39/40 entries, PDF extract from the Database 2.11   (details) 38 ENG   701KB
All HP 39/40 entries in the Entry database, as a PDF file.
By Carsten Dominik, Thomas Rast, and Eduardo M. Kalinowski. 2005/05/30

HP 48 Goodies Disk, Vol. 4   (details) 49/50 48 38 ENG   327KB
Goodies Disk 4, with Hewlett-Packard's System RPL development package for DOS PCs. It includes an RPL compiler, a Saturn assembler, a library builder, and more.
By Hewlett-Packard. 1997/08/21

HP Journal article on the HP 38G (PDF)   (details) 38 ENG   169KB
HP Journal article from June 1996 on the HP 38G in Adobe PDF format. Copyright Hewlett Packard, distributed with permission.
By Hewlett-Packard. 1998/03/15

HP Logo   (details) 38 ENG   1KB/1KB
Graphic of the HP logo.
By Andréas Thillosen. 1998/08/26

HP OS1 Warn   (details) 38 FRA   3KB/3KB
HP OS1 Warn (???).
By Andréas Thillosen. 1998/08/26

HP OS2 Ultima   (details) 38 FRA   5KB/5KB
HP OS2 Ultima (???).
By Andréas Thillosen. 1998/08/26

HP Piano 1.0   (details) 39/40 38 ENG   303KB
A PC program to create songs on the HP 38/39/40G's. Easy to use in conjunction with ADK. Uses a keyboard layout, different note lengths and tempos, also rests.
By Alan Lark. 2003/01/10

HP Piano X 1.0   (details) 39/40 38 ENG   438KB
HP Piano X is an enhanced version of the original HP piano. This 32-bit Windows program allows you to record your favorite tunes, in real time, or by selecting notes, and send them to the calculator as a program or copy them into a System RPL aplet or library. This version also includes PC keyboard input
By Alan Lark. 2004/05/09

HP Tools for FreeBSD 3.0.8   (details) 49/50 48 39/40 38 ENG   282KB
FreeBSD pkg_add installation file for the free System RPL and assembly language (HP syntax and MASD [Meta Kernel] syntax) development kit. In elf format for FreeBSD 5 x86. Source code available on the FreshPorts site.
By Jean-Yves Avenard, Hewlett-Packard, and Pedro F. Giffuni. 2003/07/28

HP Tools for Linux 3.0.8   (details) 49/50 48 39/40 38 28 ENG   112KB
Linux RPM installation file for the free System RPL and assembly language (HP syntax and MASD [Meta Kernel] syntax) development kit. In elf format for Linux x86.
By Jean-Yves Avenard and Hewlett-Packard. 2002/12/29

HP Tools for Win32 3.0.8   (details) 49/50 48 39/40 38 28 ENG   161KB
Win32 binaries for the free System RPL and assembly language (HP syntax and MASD [Meta Kernel] syntax) development kit. Should run under Win95, 98, ME, NT, 2000, XP.
By Jean-Yves Avenard and Hewlett-Packard. 2002/12/29

HP Tools Source Code 3.0.8   (details) 49/50 48 39/40 38 28 ENG   428KB
Source code for the free System RPL and assembly language (HP syntax and MASD [Meta Kernel] syntax) development kit. Should compile under most Unix systems (including Cygwin) and Microsoft Visual C++.
By Jean-Yves Avenard and Hewlett-Packard. 2002/12/29

HP Tools Source Code 3.0.8 Patch (Linux) 0.3.2.1   (details) 49/50 48 39/40 38 28 ENG   33KB
Patches HP Tools Source Code 3.0.8 so that it builds on modern Linux systems and also adds some enhancements to the build system.
By Jonathan Busby. 2019/04/22

HP Tools Source Code 3.0.8 Patch (Mac)   (details) 49/50 48 39/40 38 28 ENG   10KB
Patches the source code for HP Tools Source Code 3.0.8 so that it builds on a 64-bit Macintosh for modern versions of macOS.
By Paul Onions. 2017/04/15

hpc Vol. 4 Num. 1   (details) 48 38 ENG   267KB
Newsletter for educators about HP calculators from April, 1998. This issue covers the HP 48G+, HP 38G ApLets, and some general HP calculator information.
By Grapevine Publications. 1998/10/10

hpc Vol. 4 Num. 2   (details) 48 38 ENG   220KB
Newsletter for educators about HP calculators from September, 1998. This issue covers calculators on the AP Calculus exam, HP 38G ApLets, and some general HP calculator information.
By Grapevine Publications. 1998/10/10

hpc Vol. 5 Num. 1   (details) 48 38 ENG   193KB
Newsletter for educators about HP calculators from January, 1999. This issue covers defining functions, Taylor polynomial approximation, exponential decay, and general HP calculator information.
By Grapevine Publications. 1999/06/30

hpc Vol. 5 Num. 2   (details) 48 38 ENG   536KB
Newsletter for educators about HP calculators from April, 1999. This issue covers animated Taylor polynomials, visualizing the pivot from derivative to integral, polar plots, and general HP calculator information.
By Grapevine Publications. 1999/06/30

hpc Vol. 5 Num. 3   (details) 49/50 48 38 ENG   543KB
Newsletter for educators about HP calculators from September, 1999. This issue covers the 49G, Taylor polynomials, polar plots, and general HP calculator information.
By Grapevine Publications. 1999/10/07

hpc Vol. 6 Num. 1   (details) 49/50 48 38 ENG   846KB
Newsletter for educators about HP calculators from January, 2000. This issue covers combinatorials, menus, coordinate geometry, limits, and general HP calculator information.
By Grapevine Publications. 2000/06/20

HP38   (details) 38 ENG   2KB/1KB
Program for the HP 48 to help make programs for the HP 38G.
By Jean-Yves Avenard. 1998/05/24

HP38G Aplet Template 1.4   (details) 38 ENG   41KB
Aplet frame for creating System RPL and assembly language aplets.
By Detlef Müller. 1999/05/11

HPComm38 Source Code 1.0r4   (details) 39/40 38 ENG   81KB
Tarred and bzipped GPL source code for HPComm38.
By Jean-Pierre Bergamin and Hewlett-Packard. 2000/07/05

HPGComm 2.0   (details) 39/40 38 ENG   127KB
HP 38/39/40 link kit for Windows 95/98/NT/2000, with an easy-to-use Explorer-like interface.
By Jean-Pierre Bergamin and Hewlett-Packard. 2001/07/02

HpIrDA   (details) 48 39/40 38 ENG   2KB
Document about the basics of the HP calculator and PC IrDA infrared port communication.
By Christoph Gießelink. 2001/10/27

HPPaint 1.3   (details) 39/40 38 ENG   11KB/6KB
Possibly one of the best monochrome GROB editors. Contains various files, including English and French versions in both library and variable format, along with source code. English translation by Fin; HP 38/39/40 port by HP-Poska.
By François Darras (Dar), Erwan Ancel (Burd), Laurent Mallet (Ellis) and others. 2003/07/19

HPternet 1.3b   (details) 49/50 48 39/40 38 FRA   333KB
This program can simulate a long cable between 2 HP calculators, using the Internet protocol. This can be useful for trying 2-player games or sending files calc-to-calc.
By Le Brech Yann. 2003/12/26

HPternet Emulator 1.3b   (details) 49/50 48 39/40 38 FRA   422KB
The same as HPternet, but doesn't use the serial port but the YorkeM emulator (included). You will need a ROM to use it. Tested only with the 49G.
By Le Brech Yann. 2003/12/26

Hyper Matrix 1.0   (details) 38 ENG   2KB/4KB
Lets students work with matrix calculations as quickly as possible. When it starts, it displays a list of matrix calculations you can perform (add, subtract, inverse, etc.). After choosing one, the program asks you for two matrices, namely M1 and M2. Once that's done the answer is automatically displayed and stored in M1. I've even programmed it to detect when certain calculations aren't possible. While this may sound like a lengthy process, it does take place a lot faster.
By Jarryd Pinto. 2017/07/26

Indef   (details) 38 ENG   1KB/1KB
Front-end to determine f(x) and some other stuff.
Author unknown. 1998/08/26

Indices Practice   (details) 38 ENG   15KB/1+KB
ScreenshotThis aplet provides simple drill practice for students learning the laws of indices, with the option of including negative powers. It presents students with practice problems in correct mathematical layout and then allows them to enter the simplified answer. There are a wide variety of styles of problems. It will then tell them if they are right or wrong, offering a second chance if needed.
By Colin Croft. 2003/05/20

Inequalities   (details) 38 ENG   4KB/3KB
Graphically solve a system of linear inequalities.
By Hewlett-Packard. 1998/06/22

Inequations   (details) 38 ENG   9KB/2KB
ScreenshotThis is a copy of the function aplet with the additional ability to graph inequalities (linear/non-linear) for F1, F2 and F3(X). These can be overlaid to show intersections or unions.
By Colin Croft. 1999/03/15

Inference   (details) 38 ENG   17KB/6KB
This aplet gives inferential statistics access for the 38G similarly to that of the 39/40G. The interface is not as smooth as the 39G version and there is no graphical view to aid in your judgment but it does the trick pretty well. Documentation is included.
By Colin Croft and Detlef Müller. 2017/07/25

Intensity   (details) 38 FRA   1KB/1KB
Calculation of loudness.
By Andréas Thillosen. 1998/08/26

Inverses   (details) 38 ENG   18KB/3KB
ScreenshotExplore inverse relations and functions. Analyze relations and functions graphically, numerically, and symbolically.
By Hewlett-Packard. 1998/06/22

IRALARM 1.2   (details) 48 38 ENG   48KB/3KB
ScreenshotAn infrared alarm aplet for the HP 38G. Written in System RPL and assembly language. An older HP 48S/G version and source code is included.
By Jordi Hidalgo. 2000/12/19

Jackpot   (details) 38 FRA   1KB/2KB
Jackpot game.
By Cédric Messoumian. 1998/08/25

Jacobi 1.0   (details) 38 ENG   3KB/1KB
Calculates the Jacobi symbol indicating quadratic residue nature.
By Gerald Hillier and B. Bock. 2006/08/28

Key Finder   (details) 38 ENG   14KB/2KB
School activity for investigating the statistical modeling of a simple experiment.
By Colin Croft. 1999/03/15

KML 2.0 Docs Release 22   (details) 49/50 48 39/40 38 28 ENG   16KB
Documentation in Word format that explains the full syntax needed to be known to make KML scripts for making custom skins for the Emu28, Emu42, Emu48, and Emu71 emulators.
By Casey Patterson and Christoph Gießelink. 2021/09/25

KML48 PPC   (details) 49/50 48 39/40 38 ENG   21KB
KML scripts for use with Emu48 for Pocket PC. Bitmaps not included; they can be downloaded separately.
By Christoph Gießelink. 2004/09/07

Lander   (details) 38 ENG   3KB/1KB
Lunar lander simulation.
Unknown original author and James Donnelly. 1998/05/24

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

Last Non-Zero Digit of Factorial   (details) 38 ENG   2KB/1KB
Inserts symbolics in the Sequence App to produce the sequence of numbers that are the last non-zero digit of the factorial of that number. This is A008904.
By Gerald Hillier. 2017/09/26

Law of Sines   (details) 38 ENG   16KB/3KB
ScreenshotSolve oblique triangles by applying the laws of sines.
By Hewlett-Packard. 1998/06/22

Laws of Exponents   (details) 38 ENG   13KB/2KB
ScreenshotApply the laws of exponents to multiply and divide monomials and to raise a monomial to a power.
By Hewlett-Packard. 1998/05/24

LCM   (details) 38 ENG   2KB/1KB
Computes the least common multiple of two integers a and b.
By James Donnelly. 1998/05/24

Line   (details) 38 ENG   2KB/2KB
Line drawing program.
By Steve Dunham. 1998/08/26

Linear   (details) 38 ENG   30KB/3KB
Identify the slope and the y-intercept given a linear equation, and will describe the various effects positive, negative and zero values have on the graph.
By Colin Croft. 1998/06/22

Linear Explorer   (details) 38 ENG   18KB/1KB
ScreenshotAn aplet similar to the Quadratic and Trig Explorers (but not as fast) which allows the student to explore linear graphs. The equation of the graph is displayed at the top left corner of the screen and the student can change the gradient and y-intercept using the arrow keys. Intercepts are shown on the screen.
By Colin Croft. 2003/05/20

Linear Fit   (details) 38 ENG   21KB/3KB
ScreenshotThe student nominates what they think is the line of best fit for a set of bivariate data. They can then adjust the line interactively, seeing the effect on the sum of squares of residuals.
By Colin Croft. 1998/05/24

Linear Inequality   (details) 38 ENG   16KB/3KB
ScreenshotGraphically solve a linear inequality.
By Hewlett-Packard. 1998/06/22

Linear Programming   (details) 38 ENG   22KB/1KB
ScreenshotThis aplet visually solves linear programming problems, finding the vertices of the feasible region and the max/min of an objective function. The final stage of finding the vertices is a bit slow but the result is very impressive. It's a wonderful tool for teachers marking test papers - it lets you easily check whether a student's feasible region is correct if they have their constraints wrong. That's why I originally wrote it: sheer frustration after the 20th paper that had to be reworked from scratch to assign part marks.
By Colin Croft. 2003/05/20

Long&Lat   (details) 38 ENG   1KB/2KB
Works out the distance of the circle with the given coordinates.
Author unknown. 1998/09/06

Main   (details) 38 ENG   1KB/2KB
Tells you the Yint Xint Turning point etc of a line and also expands equations like x2 + 3X + 5 into (X +- ?)(X +- ?).
Author unknown. 1998/09/06

Map the Wrap   (details) 38 ENG   25KB/1KB
Investigate the relationship between the unit circle and the graphs of y=sin x and y=cos x.
By Hewlett-Packard. 1998/06/22

Mastermind   (details) 38 FRA   3KB/3KB
The famous Mastermind game.
By Cédric Messoumian. 1998/08/25

Matrix RREF   (details) 38 ENG   19KB/2KB
Solve systems of equations using Gauss-Jordan elimination. The student will algebraically manipulate the matrix to put it in row-reduced echelon form (RREF).
By Hewlett-Packard. 1998/06/22

Measurement   (details) 38 FRA   1KB/1KB
Principal measurement solver.
By Andréas Thillosen. 1998/08/26

Memory   (details) 38 ENG   1KB/1KB
Provides a numerical and graphical representation of the amount of free memory/used memory.
By Quin Pendragon. 1999/03/15

Memory Checker   (details) 38 ENG   1KB/1KB
This is a small utility that displays the amount of memory used and remaining as percentages. I'm told that when the memory used reaches 85% the calculator starts to misbehave.
Author unknown. 2003/05/20

Merry X-Mas   (details) 38 ENG   2KB/1KB
Merry Christmas song.
By Per Hansson. 1998/09/12

Micro Games   (details) 38 ENG   4KB/3KB
Some miniature games which can be played in the menu bar area.
By Jean-Yves Avenard and Cyrille de Brébisson (HpMad). 1998/05/24

Midpoint Rule   (details) 38 ENG   2KB/1KB
Uses the Midpoint Rule to approximate the definite integral a∫b ƒ(x) dx. Enter both programs into the calculator. Store the expression ƒ(x) dx in the F1 function in the Function aplet. Be sure F1 is checked. The program itself will prompt you for the limits a and b and for the number of subintervals η.
Author unknown. 2019/12/31

Mig for HP 38/39/40 20060131   (details) 39/40 38 ENG   235KB/6+KB
ScreenshotMusic interpreter which plays polyphonic music, ported to the HP 38/39/40. Not compatible with the ARM-based models.
By Miguel González Cuadrado and Khanh-Dang Nguyen Thu-Lam. 2006/02/02

Minehunt for the HP 38G 2.0   (details) 38 ENG   4KB/4KB
ScreenshotThe classic Minehunt game now for the HP 38G.
By Hewlett-Packard and Jordi Hidalgo. 2002/10/11

Monte-Carlo   (details) 38 FRA   1KB/1KB
Not sure what this is; something about Approx_Int and Approx_PI.
Author unknown. 1998/10/28

Morpion   (details) 38 FRA   2KB/2KB
Crab-louse game.
By Cédric Messoumian. 1998/08/25

Music   (details) 38 ENG   4KB/1-9KB
Various music files including Blister in the Sun, Charge, Come As You Are, Dumped Again, Flintstones Theme, Funeral March, Happy Birthday, Mary Had a Little Lamb, Nick's Song, The First Noel, and more.
Author unknown. 1998/10/31

Music   (details) 38 ENG   5KB/1-9KB
A collection of music files, two of which are written by Colin Croft and the others by unknown programmers. Songs are: Flintstones, Dumped Again, Blister in the Sun, Mary Had a Little Lamb, Nick's Song, Happy Birthday, Charge, Funeral March, Come As You Are, The First Nowell, Happy Birthday (II), Star Wars, Hymn 389.
By Colin Croft and others. 2003/05/20

Neighbour Function (Dedekind Cut)   (details) 38 ENG   2KB/1KB
Programs to do the neighbor function and the Dedekind cut. The neighbor function for a real number N finds the nearest number to N that the calculator can represent. The Dedekind cut returns for real input N the upper and lower nearest numbers to N that the calculator can represent.
By Gerald Hillier. 2017/09/29

Newton-Raphson Iteration   (details) 38 ENG   13KB/2KB
ScreenshotSchool activity designed to investigate the visual representation of the iterative process, and the effects on the iterative process of choosing "unstable" initial values.
By Colin Croft. 1998/05/24

Newton's Method   (details) 38 ENG   2KB/1KB
Uses Newton's Method to approximate the zeros of a function. Enter both programs into the calculator. Store the expression ƒ(x) in the F1 function in the Function aplet. Be sure F1 is checked. Then graph the function to estimate one of its zeros. The program will prompt you for this estimate.
Author unknown. 2019/12/31

Note Filer 0.2   (details) 38 ENG   44KB/3KB
Aplet that sets up folders of notes in a similar way to the structures you can set up on a PC.
By Jordi Hidalgo. 2002/10/11

NumTheory38 1.1   (details) 38 DEU   23KB/3KB
Group of number theory programs for modulo powering, prime testing and factorizing of integers. Includes Rabin-Miller test and Shanks square form factorization. Full documentation in German.
By Gerald Hillier. 2015/07/26

Obesity   (details) 38 FRA   1KB/1KB
Tells whether you are obese or not.
By Andréas Thillosen. 1998/08/26

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

Order of Operations   (details) 38 ENG   14KB/1KB
ScreenshotSimplify expressions using the order of operations.
By Hewlett-Packard. 1998/06/22

Parallel / Perpendicular   (details) 38 ENG   13KB/4KB
ScreenshotWrite the equation of a line parallel or perpendicular to a given line through a given point.
By Hewlett-Packard. 1998/06/22

Patch64K   (details) 38 ENG   31KB
This package contains the files necessary to patch an uploaded HP 38G ROM image A1.67 to one that can be programmed directly into an OTP, EPROM or flash ROM necessary for a 64K RAM upgrade.
By Detlef Müller. 2004/12/18

PC   (details) 38 FRA   1KB/2KB
Fake PC-like startup screen.
By Andréas Thillosen. 1998/08/26

Percent   (details) 38 ENG   12KB/2KB
ScreenshotWrite ratios that will solve problems of the form A is B% of C.
By Hewlett-Packard. 1998/06/22

Periodic   (details) 38 ENG   46KB/3KB
ScreenshotExplore the four different parameters that effect the graph of y=Asin(BX+C)+D and/or y=Acos(BX+C)+D, and will be able to analyze these symbolically and graphically.
By Hewlett-Packard. 1998/06/22

Phase Shift   (details) 38 ENG   13KB/4KB
ScreenshotInvestigate the parameter C to see how it effects the functions y = sin(x+C), y = cos(x+C), y = tan(x+C), y = sec(x+C), y = csc(x+C), y = cot(x+C).
By Hewlett-Packard. 1998/06/22

Phoenix 38 1.1Get It   (details) 38 ENG   8KB/10KB
"Shoot the aliens, before they shoot you" could be a short decription of this game. This game is similar to Round 42 for the computer, but with only five levels.
By Davor Jadrijevic and Detlef Müller. 1998/10/20

Physics   (details) 38 ENG   2KB/1KB
Physics programs to convert sound intensities into loudness levels, to add decibel levels directly, and to add together resistances in parallel.
By Quin Pendragon. 1999/03/15

Piecewise Functions   (details) 38 ENG   10KB/2KB
ScreenshotSchool activity to teach a student to define and plot 2 piece, 3 piece or 4 piece piecewise-defined functions.
By Andy Vella. 1999/03/15

PLDL100 Link Software   (details) 38 ENG   14KB/10KB
Link software to connect the HP 38G with the PLDL100 Data Logger.
By Hewlett-Packard. 1998/05/24

Point Guess   (details) 38 ENG   11KB/2KB
ScreenshotRecognize and name the coordinates of points.
By Hewlett-Packard. 1998/06/22

Polar Equation Plot   (details) 38 ENG   13KB/3KB
ScreenshotGraph polar equations and be able to analyze these symbolically and graphically.
By Hewlett-Packard. 1998/06/22

Polar Point Plot   (details) 38 ENG   16KB/4KB
Plot points in polar form and convert polar coordinates to rectangular coordinates and vice versa.
By Hewlett-Packard. 1998/06/22

Polynome   (details) 38 FRA   1KB/2KB
Solves second degree polynomials.
By Andréas Thillosen. 1998/08/26

Popcorn   (details) 38 ENG   1KB/1KB
Popcorn song.
By Per Hansson. 1998/09/12

Portable Telephone   (details) 38 FRA   1KB/1KB
Makes the HP ring like a cell phone.
By Andréas Thillosen. 1998/08/26

Prime Numbers   (details) 38 FRA   1KB/2KB
Prime number program.
By Andréas Thillosen. 1998/08/26

Probability Distributions   (details) 38 ENG   23KB/2KB
ScreenshotAn essential tool for any student going into an exam which involves probability functions. This is two copies of the Solve aplet with equations pre-entered for Discrete and Continuous probability density functions respectively. Covers the Binomial distribution (individual and cumulative), the Poisson distribution (individual and cumulative), the Exponential function, the Normal distribution, plus more.
By Colin Croft. 2017/07/26

QuadForm   (details) 38 ENG   18KB/2KB
ScreenshotDetermine the nature of the roots, predict how many times, if any, the graph of a parabola will cross the x-axis, and find the solution(s).
By Hewlett-Packard. 1998/06/22

Quadratic   (details) 38 ENG   24KB/3KB
ScreenshotInvestigate the effects of changing A, H, and K in the vertex form of a quadratic function. Analyze the effect of these parameters symbolically and graphically.
By Hewlett-Packard. 1998/06/22

Quadratic Explorer   (details) 38 ENG   50KB/7KB
ScreenshotVery well written HP 38G Aplet. This allows students to investigate the behavior of the graph of y=a(x+h)2+v as the values of a, h and v change. This can be done both by manipulating the equation and seeing the change in the graph, and by manipulating the graph and seeing the change in the equation.
By Hewlett-Packard and Colin Croft. 1998/10/10

Quadratic Focus & Directrix   (details) 38 ENG   12KB/2KB
ScreenshotThis is an aplet which lets you explore the relationship between the focus and the directrix of a quadratic equation/graph.
By Colin Croft. 2003/05/20

Rational   (details) 38 ENG   23KB/3KB
ScreenshotInvestigate rational functions and the asymptotes associated with the function.
By Hewlett-Packard. 1998/06/22

RCIS   (details) 38 ENG   1KB/1KB
Program to convert complex numbers from Cartesian to polar form.
By Colin Croft. 1999/03/15

Real Calcs KML Scripts for Emu48 3.0Get It   (details) 49/50 48 39/40 38 ENG   12252KB
Collection of skins (bitmaps and associated KML scripts) for Emu48 1.61 (or Emu48+ 1.59) or higher for emulating the 38G, 39G, 40G, 48SX, 48GX, or 49G. Includes medium (2X) and large (3X) versions, in both full-bezel and cropped versions, for all calculators, as well as custom icons. All were designed to look as real as possible, including support for a borderless window for a virtual floating calculator.
By Eric Rechlin. 2019/02/27

Rect   (details) 38 ENG   2KB/1KB
Rectangle sums program.
By Steve Dunham. 1998/08/26

Reflection   (details) 38 ENG   17KB/1KB
ScreenshotReflect graphs of functions about the y-axis, x-axis, origin, and the line y=x.
By Hewlett-Packard. 1998/06/22

Residual   (details) 38 ENG   21KB/3KB
ScreenshotCompute residual values and display their graph as another way to determine how good the regression equation fits the data.
By Hewlett-Packard. 1998/06/22

Right Triangle Solutions   (details) 38 ENG   3KB/3KB
Calculates angles and sides in a right triangle.
By Cosmoschtroumph. 2000/04/10

Right Triangles   (details) 38 ENG   13KB/2KB
Solve right triangles by using the Pythagorean Theorem and the trigonometric ratios sine, cosine, and tangent.
By Hewlett-Packard. 1998/06/22

ROM Rainbow 0.2   (details) 48 38 ENG   87KB
Source code and generic Linux x86 64-bit executable for a program that converts an HP48 series ROM dump to a colored pixelated representation using the FreeImage library. Given an input ROM dump file, an output PNG file name and a width and a height, it generates a output PNG file of the desired dimensions, with the output being a color pixelated representation of the input ROM dump file.
By Jonathan Busby. 2019/10/25

ROM Upload   (details) 38 ENG   3KB/2KB
Uploads the HP 38G's ROM via XModem to your computer for use in Emu38.
By Jean-Yves Avenard. 1998/05/24

Root Finder   (details) 38 ENG   1KB/1KB
Given the coefficients of a polynomial of any degree, it will give you the roots to any desired number of significant figures. If one or more of the roots are complex then it will ignore those and give only the real ones.
By Colin Croft. 2017/07/24

RotShape 1.0   (details) 39/40 38 ENG   12KB/6KB
ScreenshotA cool graphics demo featuring realtime animated 3D graphics. It has a fast line routine, Sin/Cos lookup code, uses 1.7 fixed point math to do the calculations, and double buffering for the animation.
By Chris Lomont and HP-Poska. 2002/12/30

Rounding Drill   (details) 38 ENG   15KB/2KB
This aplet which gives the user drill in rounding to a number of decimal places or to a number of significant figures. This is purely a drill program not a teaching aplet.
By Colin Croft. 2003/05/20

Row Operations   (details) 38 ENG   12KB/2KB
ScreenshotSchool activity designed to investigate the use of elementary row operations in the reduction and/or solution of a 3 by 3 system of linear equations expressed as an augmented matrix.
By Colin Croft. 1998/05/24

RPL-Tools   (details) 49/50 48 39/40 38 ENG   420KB
Useful Emacs tools for working with RPL source code. For System RPL, implements syntax highlighting and documentation lookup, using data extracted from Carsten Dominik's entries.db system RPL entries database.
By Paul Onions. 2017/04/15

RSum   (details) 38 ENG   24KB/1KB
Calculates the left-hand, right-hand, trapezoid and midpoint Riemann sums which are commonly used to estimate the value of a single definite integral of any reasonably well-behaved real-valued function.
By John Courtney. 1998/10/31

saturn for HP 38 1.0   (details) 38 ENG   15KB
Patch for "saturn", the "poor man's emulator" for Unix, to allow proper emulation of the HP 38.
By Khanh-Dang Nguyen Thu-Lam. 2006/02/02

Screen Saver   (details) 38 ENG   1KB/1KB
A "screen saver" graphics demo.
By Colin Croft. 1998/10/31

Sequence A002516   (details) 38 ENG   1KB/1KB
Generates sequence A002516, the earliest sequence with a(a(n))=2n.
By Gerald Hillier. 2017/08/02

Simpson's Rule   (details) 38 ENG   2KB/1KB
Uses Simpson's Rule to approximate the definite integral a∫b ƒ(x) dx. Enter both programs into the calculator. Store the expression ƒ(x) dx in the F1 function in the Function aplet.
Author unknown. 2019/12/31

Simulations   (details) 38 ENG   25KB/9KB
ScreenshotSchool activity designed to simulate sets of observations on various discrete and continuous random variables. These can be used in test problems or exercises, or as aids in teaching the topic of random variables.
By Colin Croft. 2017/07/25

Sine   (details) 38 ENG   1KB/1KB
Solve a triangle using the Law of Sines.
Author unknown. 1998/09/06

Sine Define   (details) 38 ENG   28KB/2KB
ScreenshotSchool activity designed to investigate the definitions of sine, cosine and tangent on the Unit circle. These can be used in test problems or exercises, or as aids in teaching the topic of random variables.
By Colin Croft. 2003/05/20

Sliding Block Game   (details) 38 ENG   4KB/4KB
Find a way to move the big 2x2 block to the exit on the right.
Author unknown. 1998/05/24

Slope   (details) 38 ENG   2KB/1KB
Slopefield plotter program.
By Steve Dunham. 1998/08/26

Slope Fields   (details) 38 ENG   15KB/2KB
ScreenshotSchool activity designed to investigate the production of a field of slopes from a derivative function stored in F1(X), and the drawing of multiple possible integrals given starting points (x,y).
By Colin Croft. 1998/10/31

SlopeField   (details) 38 ENG   15KB/2KB
Allows you to display a sampled slope field for any 1st order ordinary differential equation of the form dx/dy = f(x,y).
By John Courtney. 1997/08/21

Sokoban 2.0Get It   (details) 38 ENG   46KB/10KB
Fun puzzle game with 50 levels where you must move blocks, including sound support. Includes source code.
By Detlef Müller. 1998/11/25

Solitary   (details) 38 FRA   1KB/2KB
Simple solitaire game.
By Cédric Messoumian. 1998/08/25

Speed   (details) 38 ENG   3KB/1KB
Tests your speed on the keypad.
By Johan Levander and Per Hansson. 1998/09/12

Square Root's Partial Quotients   (details) 38 ENG   2KB/1KB
Compute a list of partial quotients of the continued fraction equal to the square root of an integer.
By James Donnelly. 1998/05/24

Star Wars   (details) 38 ENG   1KB/1KB
Star Wars theme song.
By Per Hansson. 1998/09/12

Substitution   (details) 38 ENG   13KB/7KB
ScreenshotEvaluate expressions when given values for the variables.
By Hewlett-Packard. 1998/06/22

Surd Simplifier   (details) 38 ENG   2KB/1KB
This is a small but very handy program written by a student who obviously has some interesting ideas. If you enter a surd or an expression involving surds it will return the simplified version.
By Dale Shelton. 2003/05/20

Surface Waves   (details) 38 ENG   16KB/2KB
Explore relationships among the data concerning surface waves.
By Hewlett-Packard. 1998/06/22

Sweets Box   (details) 38 ENG   11KB/3KB
ScreenshotSchool activity designed to investigate a problem in optimization where they are required to maximize the volume by manipulating a single variable.
By Colin Croft. 1998/05/24

Tangent Lines   (details) 38 ENG   49KB/2KB
ScreenshotSchool activity designed to investigate the change in the gradient of a tangent line as the point of tangency moves along the function.
By Colin Croft. 1998/05/24

Taquin   (details) 38 FRA   1KB/2KB
Taquin game.
By Cédric Messoumian. 1998/08/25

Template   (details) 38 ENG   8KB
Microsoft Word template for creating documentation for HP 38G aplets.
By Colin Croft. 1998/10/31

Tetris 2.7   (details) 49/50 48 39/40 38 ENG   29KB/7KB
ScreenshotThis is Tetris2, a very nice Tetris game for all HP graphing calculators (38G, 39G, 40G, 48, 49G). Some features: small size (<6.5kb though a very good size/performance ratio), very close to the original TETRIS gameplay, configuration of the gameplay + three game modes, 2-Player games via serial I/O (IR or wire), runs well on Emu48 (sp 8+).
By Detlef Müller and Raymond Del Tondo. 2002/02/07

The First 50   (details) 38 ENG   86KB/1+KB
ScreenshotThis is a collection of small programs you can type in yourself or download. They perform a multitude of small tasks, some that are so easy you'll wonder why I wrote a program for them, some that are really cool. Separated into two parts, because there are too many programs to fit all in the 38's memory at once. Mostly math programs, for numeric, trigonometric, complex, linear, and cubic calculations, plus probability, matrix, finance, statistics, and more.
By Colin Croft. 2003/05/20

Ticking Clock for the HP38/39/40G 1.0   (details) 39/40 38 ENG   18KB
ScreenshotThis is an ingeneous and excellent add-on that is basically a really neat total waste of time :-) When you download the library to your calculator it will put a ticking clock at the bottom of the HOME view. It displays both the date and the time (once you've set them) and uses both 12hr and 24hr time format and both US and European date format.
By Jordi Hidalgo. 2003/03/06

Time Series   (details) 38 ENG   22KB/3KB
ScreenshotSchool activity designed to easily and quickly analyze Time Series style data, by calculating moving averages (3, 4 & 5 point), seasonal residuals, trend lines and seasonally adjusted data. It more a working tool, rather than an investigative tool.
By Colin Croft. 2017/07/25

Timer 1.5   (details) 38 ENG   1KB/1KB
A program were you enter a number and it counts down.
By Robert Morgan. 2001/06/10

Transformer   (details) 38 ENG   18KB/2KB
ScreenshotThis is an easy adaption of the Parametric aplet which allows the student to investigate geometric transformations using 2x2 matrices. It is a fantastic teaching tool - my class deduced all the basic 2x2 transformation matrices for themselves in less than an hour.
By Colin Croft. 2017/07/26

Trap   (details) 38 ENG   1KB/3KB
This is a very neat practical joke program written by Cathy Edward's brother (slightly modified by Colin Croft). It puts a false picture of the HOME view on the screen and then no matter what key the person hits, it just puts up a message saying "Go away I'm busy!". Press ON two or three times quickly to get out.
Unknown original author and Colin Croft. 2003/05/20

Trig Explorer   (details) 38 ENG   23KB/7KB
ScreenshotVery well written HP 38G Aplet. This allows students to investigate the behavior of the graph of y=a sin(bx+c)+d as the values of a, b, c and d change. This can be done both by manipulating the equation and seeing the change in the graph, and by manipulating the graph and seeing the change in the equation.
By Hewlett-Packard and Colin Croft. 1998/10/10

Usinagaz 0.3-040713   (details) 49/50 48 39/40 38 ENG   84KB/14KB
ScreenshotLets the HP 39/40/48/49(+) connect to the Internet at 9600bps, using a mere modem. Includes some mail and news posters, and a mail fetcher. Also appears to work over IrDA on the 49g+.
By Samuel Thibault. 2004/07/19

Vecteur   (details) 38 FRA   1KB/2KB
Vector calculation program.
By Andréas Thillosen. 1998/08/26

Vector Derivatives   (details) 38 ENG   15KB/2KB
ScreenshotSchool activity designed to investigate the relationship between the position, velocity and acceleration vectors for functions defined in the form (x(t),y(t)).
By Colin Croft. 1999/03/15

VOL/SA1   (details) 38 ENG   13KB/2KB
Calculate volumes and surface areas for the three dimensional shapes of the pyramid and the cone.
By Hewlett-Packard. 1998/06/22

VOL/SA2   (details) 38 ENG   17KB/2KB
Calculate volumes and surface areas for three dimensional shapes of the box and the cylinder.
By Hewlett-Packard. 1998/06/22

WindFix   (details) 38 ENG   1KB/2KB
Adjusts axes to nice values so cross-hair 'jumps' are to useful points rather than horrible decimals. Trig gives \pi fractions. Similar to Function Plus, but a program instead of an aplet, requiring less memory.
By Colin Croft. 2003/05/20

X-Files   (details) 38 ENG   1KB/1KB
Theme song from the X-Files.
By Per Hansson. 1998/09/12

Xennon   (details) 38 ENG   20KB/19KB
ScreenshotShoot'em up game where you have to kill all the evil aliens and catch all the bonuses. At the end of each level, fight against the Boss!
By Jean-Yves Avenard and Cyrille de Brébisson (HpMad). 1998/05/24

XModem   (details) 38 ENG   3KB/1KB
Adds XModem functionality to the HP 38G.
By Jean-Yves Avenard. 1998/05/24

Year 12 Applicable Mathematics   (details) 38 ENG   8KB/1+KB
Various math aplets for Applicable Math, including Binomial Approximation, Linear System Solver, matrix tools, and more.
By Quin Pendragon. 1999/03/15

Year 12 Calculus   (details) 38 ENG   6KB/1+KB
Various math aplets for Calculus, including Small Increments, polynomial division, trigonometric functions, and more.
By Quin Pendragon. 1999/03/15

Part of the HP Calculator Archive,
Copyright 1997-2022 Eric Rechlin.