hpcalc.org - HP 28 Archive

HP 28 Math Applications

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

There are 32 files totaling 652KB in this category.

Basic Probability   (details) 28 ENG   2KB/1KB
Primality testing program.
By Mark A. Lindsay. 1998/07/31

Bessel   (details) 28 ENG   2KB/1KB
Computes the Bessel function for FM signal modulation.
By Wayne H. Scott. 1998/07/31

Bisect   (details) 28 ENG   1KB/1KB
Bisection algorithm for functions of X.
By John Lehett. 1998/07/31

Bode Plotter   (details) 28 ENG   2KB/1KB
Bode diagram plotter.
By Jean-Charles. 1998/07/31

Curve Fitting   (details) 28 ENG   3KB/3KB
Curve fitting program for the 28S.
By Eric J. Zmyslowski. 1998/07/31

Eigenvalues   (details) 28 ENG   1KB/1KB
Tiny program to calculate Eigenvalues.
By Wayne H. Scott. 1998/07/31

Electrical Engineering Programs   (details) 28 ENG   3KB/1KB
Several simple programs for Network Analysis II or Circuits II.
By Rod Nibbe. 1998/07/31

Engineering Economy Programs   (details) 28 ENG   2KB/1KB
Eight simple programs written for an engineering economy class.
Author unknown. 1998/07/31

Fast Fourier   (details) 28 ENG   1KB/1KB
Performs Fast Fourier and Inverse Fast Fourier transforms.
By Wayne H. Scott. 1998/07/31

FBode   (details) 28 ENG   2KB/1KB
Draws Bode plots.
By Alan Ford. 1998/07/31

Fermat's Algorithm   (details) 28 ENG   1KB/1KB
Finds factors of a number near the square root of a number.
By John Lehett. 1998/07/31

Fixed Point Algorithm   (details) 28 ENG   2KB/1KB
Gives approximations of the roots of an equation using the fixed point algorithm.
By John Lehett. 1998/07/31

Fraction Calculations   (details) 28 ENG   4KB/1KB
Performs fraction calculations on the 28C.
By Jurjen N.E. Bos. 1998/07/31

Fraction Calculator   (details) 28 ENG   2KB/3KB
Allows you to add, subtract, divide, and multiply fractions, and convert fractions to and from decimal numbers.
By Ian Matthew Smith. 1998/07/31

Fractional Arithmetic   (details) 28 ENG   3KB/1KB
Fractional arithmetic routines for the HP 28S.
By Sturle Hausvik. 1998/07/31

Graphit   (details) 28 ENG   2KB/2KB
Reads the scatter data in the 'sDAT' (SigmaDAT) variable and performs a connect the dots output. The user can scale and translate the graphical output exactly like any normal graphical operation.
By John Adams. 1998/07/31

IEEE 754 Conversions   (details) 28 ENG   3KB/3KB
Converts IEEE 754 std. binary format to and from decimal format numbers.
By Russell Williams. 1998/07/31

Linear Algebra   (details) 28 ENG   5KB/1KB
Presents a few simple linear algebra techniques for the HP 28S.
By John Paul Morrison. 1998/07/31

Method of Weighted Residual   (details) 28 ENG   579KB/1KB
Prior to development of the Finite Element Method, there existed an approximation technique for solving differential equations called the Method of Weighted Residuals (MWR). For Galerkin's method, the test function w comes from the chosen trial function, i.e. w = du/da and the weighted average of the residual over the problem domain is set to zero. This program returns the trial function. It is shown plotted with the exact solution for 0<x<1.
By M. Brethen. 2017/04/15

Pi Generator   (details) 28 ENG   1KB/1KB
Generates digits of pi.
By Matthew T. Day. 1998/07/31

Plotter Replacement   (details) 28 ENG   1KB/1KB
Plots multiple displays for any given expression, program, or equation that is stored in EQ.
By Rick Grevelle. 1998/07/31

Polar Plot   (details) 28 ENG   2KB/1KB
Approximates polar graphs of simple polar functions.
By Steve Haehnichen. 1998/07/31

Polynomial Arithmetic   (details) 28 ENG   4KB/4KB
Polynomial arithmetic routines, including addition, subtraction, division, and multiplication.
By Wayne H. Scott. 1998/07/31

Polynomial Division Program   (details) 28 ENG   3KB/1KB
Simple program to divide polynomials.
By Eliel Louzoun and Mikael Sundstrom. 1998/07/31

PRIMEFAC 1.0   (details) 48 28 ENG POR   5KB/1KB
Yet another program do determine the prime factors of integers.
By Gerson Washiski Barbosa. 2001/01/29

PRIMEQ   (details) 28 ENG   1KB/1KB
Primality testing program.
By Steve March. 1998/07/31

Root Locus Routines   (details) 28 ENG   2KB/2KB
Calculates the breakaway point for complex roots from real axis, for Root Locus analysis.
By Paul J. Dujmich. 1998/07/31

Row Reduction   (details) 28 ENG   3KB/1KB
Reduces a matrix to echelon form using Gaussian-Jordan Elimination.
By Steve March. 1998/07/31

Stats   (details) 28 ENG   3KB/2KB
Collection of some programs on statistics, which computes functions and derivations of x/y-data and draws them.
By Ulli Horlacher. 1998/07/31

Symbolic Matrices   (details) 28 ENG   2KB/2KB
Set of programs which handle symbolic matrices for the HP 28S.
By Eliel Louzoun. 1998/07/31

Symbolic Matrices 2   (details) 28 ENG   2KB/1KB
Handles lists of lists to simulate symbolic matrices.
Author unknown. 1998/07/31

Tiny Multiple Equation System Solver 1.0   (details) 49/50 48 28 ENG   3KB/1KB
Tiny MSLV (multiple equation solver) for all RPL calculators. Program is 333.5 bytes on the 48GX. On the HP-28C it can find a simultaneous root of five nonlinear real-valued expressions. Uses successive approximation and the calculator's built-in matrix functions.
By Mike Ingle. 2007/04/03

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Copyright 1997-2017 Eric Rechlin.