 Special Functions 2 expands on the Special Functions library, and contains new functions which include Set Theory (Union, Intersect, Relative Compliment), Complex Analysis (Derivative [Cauchy-Reimann Equation Test], Gradient), Stopwatch, more special functions (Si, Ci, Li, Ei, GD, Zeta, now with Roman Factorial, Pochhammer Function), Number Theory (Perfect Integer test, Arithmetic-Geometric Mean, Bernoulli Numbers [5 decimal place approx], and Fibonacci Numbers), a two week calendar, Finance (including net present value, internal rate of return, depreciation, net future value, PITI), and more. |
6KB/4KB
The program 20/19, written in 99% System RPL, archives your equations, allows you to store and use them in the equation writer, solve equations, or simply place them on the stack. Also automatically updates backups of the formulas in a single file without needing a special directory. 20/19 puts an entry in the apps menu for easy use. Only works with ROMs 1.19-5 and 1.19-6 due to the use of unsupported entry points.
3KB/2KB
5KB/6KB
The most complete simple pipes program. Contains: Colebrook equation, power, loses in pipes, volume by Darcy-Colebrook method, volume by Hazen-Williams method, Diameter by Darcy-Colebrook method, fluid velocity in loss function and more.
173KB/1KB
AntEqn calculates saturation pressure for a given temperature or saturation temperature for a given pressure using Antoine's equation. There is a list of species from which you can choose yours so you don't have to type A,B,C constants.
Performs approximate integration, the area under the curve described by a set of points, polynomial regression with graphic, multiple linear regression, differential equations, and finite difference.
Program to calculate the lifting capacity of grounds in superficial layings of foundations using the equations of Terzaghi.
Library of various commands to help with integration, interpolation, equation solving, and more. Includes Spanish-language documentation in PDF format.
Solve n*(n+1) systems of linear equations using Cramer's Rule.
Solve n*(n+1) systems of linear equations SYMBOLIC {{LIST}{LIST}{..}...} using 
Solve n*(n+1) systems of linear equations using Cramer's Rule, in both symbolic and numeric modes.
This program solves differential equations using Euler's method. Very easy!
Numeric differential equation solver with choice of different algorithms.
Easily solve differential equations.
Helps you to solve linear differential symbolic equations exactly.
A complete suite of material of Ordinary Differential Equations from "Ecuaciones Diferenciales Ordinarias" course in the University of Concepcion, Chile.
EditorRapìdo is an editor to create documents including text, matrix, equations, grobs, etc. It is the perfect complement for VisorRapido. Full documentation in package. Messes with your configuration settings.
This library is intended to provide the user with various ephemeris-generating routines, particularly in the calculation of planetary, solar, and lunar positions, and in the estimation of eclipse parameters. Most of the routines used may be found in Duffet-Smith (see the bibliography), although the iterative solution for Kepler's equation is found on pages 85-87 of the AE Roy reference, and none of the routines claim to be speedy or efficient -- mostly due to repeated calculations of positions with no saving of previous results. They have been tested against the examples provided in the sources and match with a reasonable amount of error (probably due to round-off in the examples). Planetary longitudes have been checked against the Menzel and Duffet-Smith sources at random, and are within a degree. A level of familiarity with astronomy and orbital mechanics is assumed.
This program is similar to the built in Equation Browser on the HP 48G(X), except that you can add your own equations, pictures, and variables (prompted automatically). This old version is included because it runs on the S series.
This program is similar to the built in Equation Browser on the HP 48G(X), except that you can add your own equations, pictures, and variables (prompted automatically).
Library for numeric calculus to solve first order differential equations.
Equation management library with fast browsers. Similar to the HP 48 built-in equation library browser. You can organize all the equations you write, add text and graphics, as well as programs.
The famous HP 48 Equation library reprogrammed, both for the HP 49G and 49g+, with old and new solvers. Moreover, you can make your own equally comfortable equation browser on a field not covered by the standard equation categories, even with your own animation, similar to that found in the Mass-Spring system.
Flexible and expandable equation library program. Contains most of the original equation library from the 48.
Simple database for Eql49. Also includes an unrelated compilation library of many, many useful tools by various authors. There is a great number of equations in math and finance.
EQM is an equation manager that was written to help users manage and organize equations more smoothly.
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EQSTK provides an alternative to the built-in stack displayer, with the main advantage of being capable of displaying equations in similar form as the built-in Equation Writer.
EQSTK provides an alternative to the built-in stack displayer, with the main advantage of being capable of displaying equations in similar form as the built-in Equation Writer. This version includes a 7-level interactive stack.
Contains the old Equation Library and Periodic Table libraries from HP's Equation Library card for the 48SX, ported to the 49g+ and 50g. The Equation Library libraries are the same as those included with ROM 2.08 and higher, and are included here in case they are accidentally deleted from the calculator.
Contains the old Equation Library and Periodic Table libraries from HP's Equation Library card for the 48SX, ported to the 49g+ and 50g and translated into Spanish.
163KB/52-95KB
This is the complete Equation Library including all pictures from Hewlett-Packard for the TreeBrowser which was first available as a plug-in card for the HP 48SX and was later built into the HP 48GX and HP 48G. Also includes a separate library of economics equations.
EQM is an Equation Manager that was written to help users manage and organize equations more smoothly. EQM offers as many features as HP's equation library and much more. With EQM, users can create a true user-defined Equation Library.
Contains all the equations used to analyze a load through combined forces, for use with a mechanical design course.
Contains all the equations used to analyze a force by fluctuating load, for use with a mechanical design course.
Differential equation solver.
Contains all the equations used to analyze a load through fatigue, for use with a mechanical design course.
This program finds the dc operating point (Vgsq and Icq) for an N-Channel FET using Shockley's equation.
This library contains several utilities for the studying of fluids. Has equations such as Bernouilli, Manning, Ergun, Kozeny, Weymouth, etc.
Helps you browse, create, store, evaluate, delete, move, copy, modify, rename, arrange, backup, and share formulas (equations), all within an easy and friendly user environment. Includes auto-help and was made in User RPL. Version 2KX is animated and is optimized for the 49G+ and 50G; version 9.74 is optimized for the 49G.
For creating, editing, seeing and working with equations.
Gas I is a utility that uses the state equations of thermodynamics with 15 composed, and they are in a ready-to-use database. Includes PDF documentation.
Open channel flow analysis for simple cross sections with known characteristics use HICAB to plug in the data you know and solve for that you need: Froude's number; Energy conservation; Specific force conservation and Manning's equation.
This is a text editor like a HTML environment. It is able to mix text, equations and matrices making a unique document which could be edited, erased and compatible with I/O functions. Good for keeping notes for classes.
This is a library which evaluates the Jacobian, to help people with the Newton-Raphson Method, and derive N equations below N variables, useful in electrical engineering.
Equation library of ten mechanical engineering equations.
Library of equations for the HP 49 that's better than EQNLIB of the HP 48.
Classic physics equation library.
Electrical physics equation library.
Modern physics equation library.
Mechanical physics equation library.
Asks you to input equations (even fractions), as long as you enter the same number of equations as there are variables. Then it shows you the equations again, in order for you to check them out and see if you typed them right. The program can then either put the results on the stack or send you to the matrix editor so you can fix the equations.
Numeric methods program for non-linear equations, including Newton's method.
This program solves differential equations using Euler, Euler modified and Runge-Kutta.
MathTools is a collection of tools to speed up and ease many mathematical functions of the GX, as well as including its own. Includes plotter replacement, front end for SOLVR, MatrixWriter replacement, EquationWriter replacement, table of values, and much more.
Completely replaces the HP 48 shell with a faster, better, more user-friendly version. Takes an entire 128k RAM card in port 1. Has a new filer, equation writer, matrix writer, editor, and stack, as well as many new features, such as a paint program (by Etienne de Foras) and an assembly language and System RPL development tool. 
A library for numerical methods. Contains programs for Bisection, Newton-Raphson, False Position, Fixed Point, Aitken, Newton for systems of non linear equations, Cholesky, Krylov, Taylor Series, Euler-Gauss, Runge-Kutta among others.
Good program to calculate viscosity, caudal, energies, loss in pipes and more, all as the Equation Library of the HP.
Essentially a rewrite of the Minehunt game that comes with the Equation Library. It was rewritten to have 286 little squares, rather than only 128. It also has a help file so you can figure out how to play the thing.
Calculates the values, the equation and the graph for least squares.
Mozzi equations for mechanical engineering for velocity and acceleration.
Program to solve systems of nonlinear equations. Written in System RPL.
The library NR48/49 uses the Newton Raphson method to find the solution of equations of a variable.
Solves equations using the Test and Bisection method.
Library to solve linear and nonlinear equations of a variable through different numeric methods.
PEQUM, pronounced peck-um, is personal equation manager that allows you to store, organize and solve your equations in a nicer filer interface. No other formula manager is smaller or has as many features as PEQUM. If you have lots of formulas, this program will make your life easy! Version 1.1 adds the ability to store a note with each equation, and version 1.2 adds the ability to assign units to your variables.
Gives information on logic gates in electronics including French and American symbols, the equation of the logical gate, the truth table, and the number of the associated integrated circuit.
Calculate Electrical power flow with Newton-Raphson or Gauss-Seidel way. Solve non-linear equation system. Calculate Economica Dispatch with loss, and Heat rate curves.
Equations programmed to calculate the properties of the air as an ideal gas, temperature range: 200-2250 K (the error is always less than 1%, but in pr in low temperatures when error is nearly 4.8%).
Psychro is a program for doing psychrometric calculations. Both SI and English units are supported, in a manner consistent with the Equation Library.
Psychro is a program for doing psychrometric calculations. Both SI and English units are supported, in a manner consistent with the HP 48 Equation Library.
Contains most of the important equations for elementary Queueing Theory, along with a menu-driven interface to access and solve them.
QT is a collection of fast, efficient tools to help you use your calculator for certain functions. Included are utilities such as a 4-type multi plotter which plots in FUNCTION and POLAR modes (and supports natural multiplication), a table of values generator, two equation solvers, password protection, simplification of symbolics, polynomial solving/division, hiding variables in ANY direction, and much more! Predecessor to MathTools.
An excellent replacement equation writer. A large equation that took 63 seconds to load in the built-in equation writer took less than 2 seconds to load in RainEQ. For the G series only; includes Java-enhanced version. Documentation by me, Eric Rechlin.
Asks you for an input (decimals or fractions) and calculates the center of a rectangle, switches from general to particular equation of a rectangle and vice versa, finds the slope of a rectangle, given 2 points, finds the distance between 2 points, finds the shorter distance between a rectangle and a point, finds the equation of a rectangle, given a point and the slope, and finds the equation between 2 points.
Permits you to solve "resalto hidraulico" equations (hydraulic braces, numbers of Froude, loss of energy, etc).
Contains all the equations used to analyze a spring, for use with a mechanical design course.
Numerically solves systems of differential equations by means of the 4th order Runge-Kutta method.
Fast program to interactively find real roots from any equation.
Numerically solves systems of ordinary differential equations of first order.
Solves differential equation systems of N number by the Runge-Kutta method (4th order) and has an input screen useful for editing many things. Includes a special 
Solves systems of differential equations for n*n using the Runge Kutta 4 method. Adds a splash screen that slows down your calculator.
Equation solver manager.
Simultaneous Non-Linear Equations Solver: an easy-to-use environment for solving systems of nonlinear equations.
Powerful simultaneous nonlinear equation solver.
Library of equations for designing ported and closed-box speaker enclosures. The equations were taken from speaker design books and technical papers by Richard Small and Neville Thiele.
This small application can be used to calculate the allowable stress in steel columns working under compression loads. It uses the Euler equation for elastic buckling of columns (slender columns), and for inelastic buckling of columns it use Engesser's theory.
This is a very simple program written in System RPL, which aims to improve the HP 49 LINSOLVE user interface. This software will guide you through finding solutions for symbolic linear equation systems.
Performs temperature measurement and calibration calculations using NTC thermistors and 100 Ohm Platinum RTD's. It is based on industry standard Hart-Stienhart and second-order Callendar equations for conversion of temperature and resistance values.
Wizard library for INFORM, CHOOSE, MENU and a maker program for solving many equation giving variable values.
This library contains five state equations (virial, van der Waals, Redlich-Kwong, Redlich-Kwong-Soave, Peng-Robinson), six equations for activity coefficients (Symmetric, Margules, Van Laar, UNIQUAC, UNIFAC), and four programs for calculation of bubble temperature and pressure, and dew temperature and pressure. Also includes the Antoine equation for 3 and 5 parameters.
TreeBrowser supplies an easy to use graphical environment for collections of formulas and shows them in a tree structure. The equations are passed to the built-in SOLVER or to the Multiple Equation Solver of the HP 49G/49g+ for solving. TreeBrowser allows you to create your own collections of formulas easily and quickly. TreeBrowser supports an unlimited depth of the tree, units and pictures. On a HP 49g+ the whole screen (131x80 pixels) is used.
Allows you to view any objects using all 131 by 80 pixels of your 49G+ (not 49G, it may crash). You can choose among 4 presentations. Lists have special behavior, you can join grobs, equations matrix, etc in there.
Structural analysis program for all types of beams.
Fast viewer to view all kind of objects all together. Also you can view the objects in different columns and rows.
An equation manager that operates much like the equation library that is built into the G/GX series calculator. The major difference is that xMRGLIB allows the user to add, delete, and order information.