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Mathematics

GEN Matheval 86K Matthew Lewis Apr 20/06 7.20

A math package with the ability to do simple symbolic algebra and calculus. Apr 20: v1.65: Added date/time functions, additional text functions

GEN Simpson's Rule 15K Don Cahela Mar 24/06 4.40

Integration of f(x) over a specified interval using Simpson's Rule or Boole's rule with interval halving. Recursive versions coded for 1, 2 and 3D integration. Test problems included. Mar 24: Molecular orbit type test function added to all methods.

WIN AI Trainer 4000K Wes Hermanson May 3/06 3.00

The Ai Trainer is a real-time, plain-English artificial intelligence scripting engine for use in developing non-neural, weighted logic and knowledge-based agents. (source not included) May 3: none (download link)

GEN Number conversions 3K David Money Dec 31/05 3.00

Miscellaneous number conversion routines. Convert to and from Roman numerals, convert floating point number string in any base to atom, convert number string to English text. Add appropriate ordinal string (th, nd, st) to number.

GEN Bresenham/Bezier Curves 3K Barbarella Sep 3/02 2.75

A library for all platforms that generates Bresenham lines and Bezier curves. The points are returned as x-y coordinates in a sequence. A DOS demo is included.

DOS Parameter Estimation in ODEs 378K Don Cahela Feb 1/10 2.50

Two programs to estimate parameters in ODE based models- "PESTODE" or in networks of first order Rxns-"PESTLRN", by quasilinearization. Compiled programs, no source code. Source code for a library of ODE models is given, so anyone can have models added to the NLLSQ regression program. Fifteen examples illustrate use of PESTODE and three of the examples are also solved using PESTLRN. Feb 1: Output equally spaced results and a new model.

GEN Runge-Kutta Numerical Integration 86K Don Cahela Mar 8/06 2.50

A numerical integration package for non-stiff ordinary differential equations. Classical 4th order Runge-Kutta method or Verner's 5th/6th order pair to solve any number of simultaneous ODEs. Mar 8: Added "contls" to parameter list. See parameter estimation in ODEs.

GEN Extended Precision Arithmetic 11K Antoine Tammer May 30/02 2.00

The first release of a library that provides extra precision (digits) on math calculations.

GEN Simplex Algorithm 18K Gerardo Valenzuela Lozada May 12/03 1.90

A program that implements the Primal Simplex algorithm used in solving linear programming minimization or maximization problems. It uses his enhanced data reading function library (GET_ENH.E). Several sample data files are included. See ReadMe.txt for instructions.

GEN Complex LU decomposition 2K Don Cahela Dec 22/06 1.80

Complex number linear algebra solution of Ax=b by lower-upper decomposition. Includes a routine to invert a complex square matrix. Testing code included. Dec 22: Test code moved to separate file and output more readable.

WIN InPlace Scientific Calculator and Server 231K Al Getz Apr 8/05 1.50

A scientific calculator and math server. Use as a stand-alone calculator or send data to another calc for evalulation, or use as a math server to your own app. Built in functions include algebra, trig, calculus, regression. In-Place eval allows math calculations to take place right within the text document. Load and save functions and vars for later use. Includes EE formulas. Apr 8: Now has a built-in appointment calendar. EE formulas updated with Ohm's Law and Simpson's Error. Separate property sheet page for Catalog.

WIN Image Evolver 371K Alexander Toresson May 28/03 1.20

A program to evolve pictures of mathematical expressions using genetic algorithms. It's able to do cross-overs and mutations of pictures. May 28: bug fix, some new functions

GEN Simultaneous Equations 27K Don Cahela updated Aug 2/10 1.00

Routines for solving N linear equations in N unknowns. Lower-Upper decomposition that retains intermediate results for future use. Also, routines for tridiagonal, pentadiagonal, block tridiagonal linear algebra, tridag and block tridag for periodic boundary conditions, Jacoby block iteration, and a version with sparse matix storage implemented. Aug 2: Added block tridiagonal methods that allow for reuse of the beta inverse matrices-similar to LU decomposition.

GEN Library of Statistical Functions 33K Charles Newbould updated Apr 9/10 1.00

A library of descriptive statistical functions. Includes full html documentation. Apr 9: More functions added. Folder of worked examples.

GEN Math Library 16K Don Cahela Jun 2/09 1.00

A library of functions that operate similarly to power(x,n). Also complex variable functions, statistical distributions, polynomial operations, and search for zero of general function. Test codes demonstrate use of each set of functions. Jun 2: Added interval halving version of root search.

GEN HexMath 14K Michael J. Sabal Sep 29/08 1.00

A set of routines for performing mathematical operations on almost infinitely large hexadecimal integers. Pre-alpha version. Sep 29: Restored missing file.

GEN Hypatia Command Line Calculator 105K Robert Sch�chter Oct 30/07 1.00

Hypatia is a reasonably easy to use RPN (Reverse Polish Notation) calculator for friends of the command line prompt. It runs in text mode as a command line tool. A Windows executable is available. Linux/Unix not tested, may require minor adaptations.

GEN Financial Calculator 3K Jaime Marcos Oct 25/06 1.00

This lets you make all the usual financial calcutations: simple/compound/continuous interest, NAR, ordinary/due annuities, ballon payments, perpetuities, etc. A battery of solved examples is included. The iterative calculation of the interest is performed to the maximum precision of the machine.

GEN Hyperbolic and List Routines 3K Brad Olson Feb 4/03 1.00

Hyperbolic trig functions, plus some interesting generic list routines.

WIN Regression Analysis 87K Marcelo Molina Apr 20/02 1.00

A program that fits laboratory data to a curve. (The user interface is in Spanish).

GEN Normal Distribution 1K Erik van Kampen Apr 10/01 0.70

A routine that generates a series of numbers with a Normal (Gaussian) distribution. You can choose how many numbers you want, along with the mean and standard deviation.

GEN Big Number Arithmetic 13K Craig Gilbert Jul 13/97 0.70

routines for performing arithmetic on huge numbers. He uses sequences to store thousands of digits for addition, multiplication, division, etc. -- even factoring. Note: the author warns that this code contains a lot of bugs.

GEN Handling Undefined Values 1K Juergen Luethje Sep 27/07 0.60

Logical, relational and arithmetic operations that can handle the value 'unknown'. If the operands are known numbers, the same results as from standard Euphoria operations will be returned. Sep 27: updated contact information

DOS GA Math V1.2 66K DB James Sep 30/05 0.50

GA Math is a genetic algorithm program. The user enters a formula and a population of GA beings evolves an algorithm that yields the correct answer to the entered formula. Each "gene" of the beings applies a basic math operation. The sets of genes in the population change over time and tend toward those that give the correct answer. Sep 30: Generally faster. Flicker-free screen. Added more private numbers. Many other small changes. Added to docs.

GEN Faster PI Calculation 4K Laurence Draper Sep 24/98 0.50

a fast PI calculator that calculates PI to as many digits as you like.

DOS Mathematical expression parser 191K Crash Apr 20/09

Small (and binded) parser. It can process almost any mathematical expression eg: 2+34-5*(3-46-4)+23... etc Variable definition allowed, and function declaration (not yet!)... WARNING: type #help for a brief of use. NO GUARANTIES! - CRASH -

GEN Big Fixed Math 13K Lucius L. Hilley III Jun 2/08

An arbitrary precision math library with power, root, and logarithm functions. bigfixed.e is the only include file needed. math.e is some of his prototype code. Proof of concept.

GEN Portfolio Optimizer 50K Robert Craig Nov 9/07

Got the "subprime mortgage" blues? This program attempts to maximize return while minimizing risk in an investment portfolio. It tests millions of combinations of funds, eliminating all combinations that would seem to have both lower return and higher risk than some other combination. For each level of desired return, it shows you the safest possible combination of funds that should achieve that return.

GEN Einstein's Riddle 23K Juergen Luethje Sep 27/07

Extremely fast program for solving a notorious logical puzzle known as 'Einstein's riddle'. Sep 27: updated contact information

GEN Sum words function 1K Igor Galanin Sep 20/07

A function that writes number words (sum of money) and returns a text string in Russian. All comments in the source only in Russian.

GEN Knapsack: simple and fast 2K Ricardo Forno Sep 2/07

A very simple but also very fast knapsack algorithm. Useful to: fill DVD's to the brim, equitibly divide goods, etc. Sep 2: Made algorithm somewhat faster. Added a sub-algorithm to show all possible solutions for each goal.

GEN Flat math evaluation library 9K CChris Aug 15/07

A mathematical expression library based on M. Stachon mseval.e. Returns a sequence of flat tokens, which are easier to manipulate. Can normalise an expression - one operator by pair of parentheses. Multiple variables supported. Doc can be generated using makedoc.exw from win32lib\Demo.

GEN Rounding function 1K Jean-Marc DURO Mar 25/07

Rounds atom a to n decimals (ex: round(112.234, 1) = 112.2). n may be negative (ex: round(112, -2) = 100)

GEN 2STROKE 330K Mike Duffy Jan 24/07

2-stroke exhaust design. Calculate n stage diffusers and lobster back bends. Automatically calculate all cone projections. Simple (2D) on screen graphics. Editor for cone sections with skewed and rotated ends. Outputs flat panel as TXT DXF PS EPS. Will split projections for printer sheets. Math routines and a multi-mode text/svga input routine, are in separate include files. Jan 24: Fixed bug in on-screen graphics, updated documents.

GEN Number e with thousands of digits 12K Jaime Marcos Oct 20/06

A very fast program that computes the number e to thousands of decimal digits. The output is written as a text file, num_e.txt. For example, to compute e to 21000 decimal digits on a Pentium III at 845 MHz, it took only 37.18 seconds.

GEN Generalized Runge-Kutta Numerical Integration for Stiff ODEs 138K Don Cahela Mar 8/06

Numerical integration of "stiff" ordinary differential equations by generalized Runge-Kutta method. Problems with jacobian matrices of nxn, tridiagonal, pentadiagonal, block tridiagonal jacobian matrices, and block tridiagonal with periodic boundary conditions are covered. Examples included. Mar 8: Added "contls" to parameter list. See parameter estimation in ODEs.

WIN ParticleDraw (drawing progam / particle simulator) 517K John Ringland Feb 27/06

ParticleDraw is a novel Windows drawing program powered by a state of the art general system simulation engine. The brushes are dynamic systems of particles with interesting behaviours, which you can completely customise. This program is an implementation of abstract mathematics that arose from metaphysical research. It provides a virtual reality generative process that manifests virtual universes with fundamental properties similar to our own. This program is still in development and is evolving rapidly, it is entirely free with full source code and detailed information on the website. There is also another simple drawing program and a "Game of Life" program. See screen shots and more information or see the Gallery. Feb 27: ported to Windows with full menu system; psychedelic drawing functionality; better handling; zoom & pan

GEN Triangle library 16K CChris Feb 26/06

This library allows handling triangles in 3-dimensional space. It can determine the shadow of an object (a collection of triangles) casts on another, and has a rendering function allowing subtle coloring under Windows. This v0.1 has ample room for additions.

GEN Math Library 20K Al Getz Feb 12/06

A math library with complex argument handling and algebraic solutions to Quadratic and Cubic equations, as well as a full implementation of Newton's method in one variable for solving equations numerically. Also handles trig functions with complex arguments. Many demo function calls included. Feb 12: Small fix and added taking square root of a negative number to the demos.

DOS SMN Particle Simulator 226K John Ringland Feb 5/06

System Matrix Notation (SMN) is a new mathematical methodology for the representation, analysis and simulation of general systems. "SMN Particle Simulator" is a simple example implementation of SMN in the context of systems of particles (as a general proof-of-concept for the mathematical methodology). The program allows one to easily create and interact with systems of particles as one watches them evolve on the screen. There is also a dynamic drawing program and a "Game of Life" program. In general any type of system can be modeled and future versions of SMN will allow for arbitrary general systems and advanced analysis techniques. To view screen shots or read more information see: www.Anandavala.info/TASTMOTNOR/code/v3.2b/SMNPS3_2b.html Feb 5: Now there's three example programs, each with updated features such as zoom, stepping, etc.

GEN Calculations with long numbers 8K David Money Jan 25/06

A text string representing a floating point number of any length, in any base, is converted to a sequence. Routines are provided for basic math functions, and converting to any other base. The results can then be converted back to a text string for display. Jan 25: Fixed bug with base conversion routine. Added RPN calculator demo.

GEN Base Converter (beta1) 3K jxliv7 - jon Dec 27/05

This include file (BC_beta_1.e) and DEMO (BC_demo.exw) converts integers as large as 1,073,741,823 to numbers in any base from 2 to 1,073,741,823, and vice versa. Beta limited to integers only. Source included. Documented.

WIN UCalc Wrapper and Calculator 8K Alex Chamberlain Oct 28/05

DLL Wrapper of ucalc32.dll - a very fast and accurate math expression evaluator. Also included is a calculator that uses the program. Oct 28: Version 1.b. No longer includes the download from ucalc.com (license violation). You must download UCalc FMP from http://www.ucalc.com. Now has Documentation. Beta - Very Little Testing. Please sort out/report bugs.

GEN Gridcalc 5K Michael J. Sabal Mar 11/05

A set of functions to convert from Maidenhead grids to latitute / longitude (decimal) and back, miles to kilometers and back, as well as to calculate distance and bearing between two points. No documentation yet, but it should be fairly clear what's going on. Keep in mind the US and western Europe are negative longitude, and eastern Europe and Asia are positive longitude.

GEN Amortization Tables 5K Kenneth Rhodes Jan 28/05

A simple program that calculates monthly payments on loans, mortgages etc. Jan 28: Now cross platform and uses Ricardo Forno's rounding routines from genfunc.e and Mike Nelson's text formtest.e.

DOS Short Circuit Computation Program 22K Gerardo V. Lozada Apr 22/04

Calculate fault currents due to short circuits in electric utility power systems using the Rake model in conjunction with the Kron reduction method. Simulates all types of shunt faults: 3-phase, single-line-to-ground, line-to-line and double-line-t-ground. Apr 22: Includes missing modified math.e needed by the program.

DOS Newton-Raphson Loadflow Program 19K Gerardo V. Lozada Apr 21/04

A program to compute the voltages and power flows within an electric utility power system using the Newton-Raphson method.

WIN STEELSNAKES - Exhaust Pipes Design 205K Claudio Emiliozzi Jan 2/04

A multi-cone exhaust pipes design program. This simple program allows you to design and print the external surfaces of cone sections (with slanted cuts) that can be arranged to obtain a professional Exhaust Pipe for 2 Stroke engines.

GEN Permutations and Combinations of up to 13 things 2K Ralph Gillott Nov 6/03

1. permutation number q of s: perm_qs(3,"abcd")= "acbd" 2. selection q of r things from s: select_qrs(19,3,"abcde") = "bde" 3. permutation q of r things from s: perm_qrs(15,3,"abcd") = "cad"

WIN Boids 5K Matthew Lewis Sep 5/03

Win32Lib implementation of the classic complexity theory example showing emergent behavior from a simple set of rules. You can watch the Boids fly around in 3D and change parameters that affect their behavior.

WIN Distance Calculator 228K Michael S. Thompson Sep 5/03

A program for calculating road distances between cities. It uses Djikstra's algorithm. Source and executable included. Requires Win32Lib (included)

WIN Math Problem Generator 142K Jon Sas Jun 24/03

This generates a page of random math problems. Addition, subtraction, multiplication and division.

GEN Cipher Tools 29K C. J. Silver Jan 3/03

A set of Euphoria tools for using ciphers, plus some other useful libraries. This was developed by a 13-year old for a science fair project.

GEN Big Math 216K Matthew Lewis Nov 12/02

A library that lets you perform calculations using numbers with close to 10,000 digits. The numbers can be extremely large and/or extremely precise. He uses a sophisticated technique based on the Chinese Remainder Theorem, as well as an EDS database to store previously-calculated results.

WIN Quadratic Equation 1K Rubens Monteiro Luciano May 19/02

A very simple demo that might help a beginner to get started with Win32Lib.

WIN Travelling Salesman 6K Mic Apr 28/02

A program that solves the Travelling Salesman problem, using a combination of Ant Colony Optimization, and Q-Learning. With some minor changes, this program can be made to run on the other platforms. Search for other Travelling Salesman solutions in the archive.

GEN Optimal Scaling 35K Alexei van Baaren Nov 1/01

A program used for scaling of data obtained by subjective means (i.e. opinion polls, surveys etc.).

GEN Aerodynamic Calculations 2K Erik van Kampen Apr 21/01

A program that calculates the lift generated by an airplane wing of a given shape and size.

GEN Neural Network Bug Simulator 3K John McAdam Mar 12/01

A graphical educational program where a feedforward neural network helps a bug find food.

GEN Linear Least Squares 16K Rolf Schroeder Feb 28/01

A linear least squares program for data reduction.

GEN Non-Linear Least Squares 16K Rolf Schroeder Feb 28/01

A non-linear least squares program for data reduction.

GEN Analysis of Linear Models 33K Alexei van Baaren Jan 25/01

A program that helps you to analyse linear mathematical models including regression and covariance analysis.

DOS Travelling Salesman Problem 49K Jiri Babor Nov 22/00

Jiri solves the famous travelling salesman problem with a program that uses his attractive new DOS widgets GUI package. Nov 22: new interface and widgets, includes standard 200-city set from Scientific American. See also the TSP programs by Jerry Story and Art Adamson (below).

WIN Chaos Grapher 106K SR Williamson Jul 21/00

A program that lets you experiment with functions that become chaotic for certain values.

GEN Factorial and Primes 8K Abhay Jan 25/00

Some simple programs for computing factorials and prime numbers. Jan 25: new programs plus a .doc file.

GEN Convert to Large Base 2K C. K. Lester Jan 19/00

A program that converts base 10 numbers to a large base, such as 254. It reduces the number of digits and saves space.

DOS Dado Dice Program 5K Marcos Donnantuoni Dec 20/99

A program that explores various combinations of dice.

GEN Assorted Math Routines 11K Laurence Draper Nov 30/99

A collection of advanced math routines such as FFT, Big Numbers, prime numbers, encryption etc.

GEN Statistics Program 1K VonFreudenhowser Aug 19/99

A program for performing a statistical calculation.

DOS 2-D Plotting Package 50K Leonid Shulman Apr 12/99

a fancy 2-d plotting package that includes a nice-looking demo.

GEN Simultaneous Equations 1K Laurence Draper Apr 9/99

routines for solving N equations in N unknowns.

DOS Neural Network 2K Jeff Fielding Apr 7/99

code for experimenting with Neural Networks.

DOS Genetic Algorithms 7K Jeff Fielding Apr 5/99

code for experimenting with genetic algorithms. These are algorithms that are improved through "natural selection", i.e. "survival of the fittest".

DOS Math Function Parsing and Plotting 305K Detlef Reimers Feb 24/99

a system for parsing and plotting math functions. He also included a Ghostscript program to display the resulting Postscript files. pkunzip with -d

GEN Math Routines 2K Andy Montgomery Feb 5/99

an extensive math library. Feb 5: new routines added

DOS Fuzzy Logic 12K Hawke' Oct 3/98

A library that allows Euphoria programs to use "fuzzy" logic in the decision making process. He fully explains the concept of "fuzzy" logic and he includes many examples and benchmarks.

DOS Complex Numbers (with Fractal Demos) 5K Nick Metcalfe Jul 3/98

a library of routines for exploring fractal mathematics using complex numbers.

GEN Ternary Trees 10K Art Adamson Jul 1/98

experiments with ternary trees, as opposed to the more common binary trees. Each node in the tree can have three children, rather than two. Note: You need the file WORDS.TXT from Junko Miura's spell checker (below).

GEN Knapsack Problem 6K Art Adamson Nov 11/97

a program that tries to optimally pack a knapsack (or truck or bin or whatever).

DOS Sine Wave 2K Mr. Smily May 22/97

a simple program that shows how to plot a sine wave

DOS Command Line Calculator 5K Matt Sephton Apr 27/97

a handy little calculator. It does basic arithmetic plus hex and octal conversions.

GEN Faster PI Calculation 2K Michael Bolin Mar 29/97

a modified PI.EX to run as fast as the compiled Microsoft Basic version

DOS Scientific American 4K Gavin Doig Mar 29/97

two interesting programs from Scientific American. One is a genetic algorithm that uses survival of the fittest to find the best solution to a problem. The other is based on the Prisoner's Dilemma, a problem from the branch of mathematics known as Game Theory.

GEN Calculate PI 3K James Powell Mar 25/97

Calculate PI to as many digits as you like. Both a Euphoria and a QBasic version are included.

DOS Trigonometry 1K Nathan Dudek Mar 17/97

a trigonometry program

DOS Travelling Salesman 6K Art Adamson Feb 22/97

an approximate solution to the "Travelling Salesman" problem - what is the shortest route that takes you through all the cities you have to visit?

DOS 3d graphing 8K J.F. Soucaille Feb 13/97

a program that lets you graph functions as 3-D surfaces. You can dynamically adjust parameters and the view point of the observer.

GEN Root Finder 4K Art Adamson Feb 6/97

a program that finds the roots (solutions) of polynomial equations.

GEN Matrix Operations 4K J.F. Soucaille Jan 30/97

a matrix and simultaneous equation package that uses fast operations on entire sequences, as well as strongly typed code.

GEN Invert a matrix 6K Art Adamson Jan 23/97

matrix manipulation routines, including matrix inverse and solving simultaneous equations.

GEN Inverse Math Functions 1K J.F. Soucaille Jan 16/97

useful functions such as arctan, arcsin and arccos written in Euphoria. Note: arctan, arcsin and arccos are included in Euphoria v2.1

DOS Y vs X graphing 5K Andrew Baron Jan 3/97

a graph program. It uses David Cuny's expression evaluation code. version 0.5b

DOS Math, geometry and metric conversions 4K Dave Brock Oct 2/96

library routines for advanced math, geometry, metric conversions and sequence manipulation.

This site is maintained by Robert Craig and Junko C. Miura of Rapid Deployment Software


GEN	Matheval	86K	Matthew Lewis	Apr 20/06	7.20
A math package with the ability to do simple symbolic algebra and calculus. Apr 20: v1.65: Added date/time functions, additional text functions

GEN	Simpson's Rule	15K	Don Cahela	Mar 24/06	4.40
Integration of f(x) over a specified interval using Simpson's Rule or Boole's rule with interval halving. Recursive versions coded for 1, 2 and 3D integration. Test problems included. Mar 24: Molecular orbit type test function added to all methods.

WIN	AI Trainer	4000K	Wes Hermanson	May 3/06	3.00
The Ai Trainer is a real-time, plain-English artificial intelligence scripting engine for use in developing non-neural, weighted logic and knowledge-based agents. (source not included) May 3: none (download link)

GEN	Number conversions	3K	David Money	Dec 31/05	3.00
Miscellaneous number conversion routines. Convert to and from Roman numerals, convert floating point number string in any base to atom, convert number string to English text. Add appropriate ordinal string (th, nd, st) to number.

GEN	Bresenham/Bezier Curves	3K	Barbarella	Sep 3/02	2.75
A library for all platforms that generates Bresenham lines and Bezier curves. The points are returned as x-y coordinates in a sequence. A DOS demo is included.

DOS	Parameter Estimation in ODEs	378K	Don Cahela	Feb 1/10	2.50
Two programs to estimate parameters in ODE based models- "PESTODE" or in networks of first order Rxns-"PESTLRN", by quasilinearization. Compiled programs, no source code. Source code for a library of ODE models is given, so anyone can have models added to the NLLSQ regression program. Fifteen examples illustrate use of PESTODE and three of the examples are also solved using PESTLRN. Feb 1: Output equally spaced results and a new model.

GEN	Runge-Kutta Numerical Integration	86K	Don Cahela	Mar 8/06	2.50
A numerical integration package for non-stiff ordinary differential equations. Classical 4th order Runge-Kutta method or Verner's 5th/6th order pair to solve any number of simultaneous ODEs. Mar 8: Added "contls" to parameter list. See parameter estimation in ODEs.

GEN	Extended Precision Arithmetic	11K	Antoine Tammer	May 30/02	2.00
The first release of a library that provides extra precision (digits) on math calculations.

GEN	Simplex Algorithm	18K	Gerardo Valenzuela Lozada	May 12/03	1.90
A program that implements the Primal Simplex algorithm used in solving linear programming minimization or maximization problems. It uses his enhanced data reading function library (GET_ENH.E). Several sample data files are included. See ReadMe.txt for instructions.

GEN	Complex LU decomposition	2K	Don Cahela	Dec 22/06	1.80
Complex number linear algebra solution of Ax=b by lower-upper decomposition. Includes a routine to invert a complex square matrix. Testing code included. Dec 22: Test code moved to separate file and output more readable.

WIN	InPlace Scientific Calculator and Server	231K	Al Getz	Apr 8/05	1.50
A scientific calculator and math server. Use as a stand-alone calculator or send data to another calc for evalulation, or use as a math server to your own app. Built in functions include algebra, trig, calculus, regression. In-Place eval allows math calculations to take place right within the text document. Load and save functions and vars for later use. Includes EE formulas. Apr 8: Now has a built-in appointment calendar. EE formulas updated with Ohm's Law and Simpson's Error. Separate property sheet page for Catalog.

WIN	Image Evolver	371K	Alexander Toresson	May 28/03	1.20
A program to evolve pictures of mathematical expressions using genetic algorithms. It's able to do cross-overs and mutations of pictures. May 28: bug fix, some new functions

GEN	Simultaneous Equations	27K	Don Cahela	updated Aug 2/10	1.00
Routines for solving N linear equations in N unknowns. Lower-Upper decomposition that retains intermediate results for future use. Also, routines for tridiagonal, pentadiagonal, block tridiagonal linear algebra, tridag and block tridag for periodic boundary conditions, Jacoby block iteration, and a version with sparse matix storage implemented. Aug 2: Added block tridiagonal methods that allow for reuse of the beta inverse matrices-similar to LU decomposition.

GEN	Library of Statistical Functions	33K	Charles Newbould	updated Apr 9/10	1.00
A library of descriptive statistical functions. Includes full html documentation. Apr 9: More functions added. Folder of worked examples.

GEN	Math Library	16K	Don Cahela	Jun 2/09	1.00
A library of functions that operate similarly to power(x,n). Also complex variable functions, statistical distributions, polynomial operations, and search for zero of general function. Test codes demonstrate use of each set of functions. Jun 2: Added interval halving version of root search.

GEN	HexMath	14K	Michael J. Sabal	Sep 29/08	1.00
A set of routines for performing mathematical operations on almost infinitely large hexadecimal integers. Pre-alpha version. Sep 29: Restored missing file.

GEN	Hypatia Command Line Calculator	105K	Robert Sch�chter	Oct 30/07	1.00
Hypatia is a reasonably easy to use RPN (Reverse Polish Notation) calculator for friends of the command line prompt. It runs in text mode as a command line tool. A Windows executable is available. Linux/Unix not tested, may require minor adaptations.

GEN	Financial Calculator	3K	Jaime Marcos	Oct 25/06	1.00
This lets you make all the usual financial calcutations: simple/compound/continuous interest, NAR, ordinary/due annuities, ballon payments, perpetuities, etc. A battery of solved examples is included. The iterative calculation of the interest is performed to the maximum precision of the machine.

GEN	Hyperbolic and List Routines	3K	Brad Olson	Feb 4/03	1.00
Hyperbolic trig functions, plus some interesting generic list routines.

WIN	Regression Analysis	87K	Marcelo Molina	Apr 20/02	1.00
A program that fits laboratory data to a curve. (The user interface is in Spanish).


GEN	Normal Distribution	1K	Erik van Kampen	Apr 10/01	0.70
A routine that generates a series of numbers with a Normal (Gaussian) distribution. You can choose how many numbers you want, along with the mean and standard deviation.

GEN	Big Number Arithmetic	13K	Craig Gilbert	Jul 13/97	0.70
routines for performing arithmetic on huge numbers. He uses sequences to store thousands of digits for addition, multiplication, division, etc. -- even factoring. Note: the author warns that this code contains a lot of bugs.

GEN	Handling Undefined Values	1K	Juergen Luethje	Sep 27/07	0.60
Logical, relational and arithmetic operations that can handle the value 'unknown'. If the operands are known numbers, the same results as from standard Euphoria operations will be returned. Sep 27: updated contact information

DOS	GA Math V1.2	66K	DB James	Sep 30/05	0.50
GA Math is a genetic algorithm program. The user enters a formula and a population of GA beings evolves an algorithm that yields the correct answer to the entered formula. Each "gene" of the beings applies a basic math operation. The sets of genes in the population change over time and tend toward those that give the correct answer. Sep 30: Generally faster. Flicker-free screen. Added more private numbers. Many other small changes. Added to docs.

GEN	Faster PI Calculation	4K	Laurence Draper	Sep 24/98	0.50
a fast PI calculator that calculates PI to as many digits as you like.

DOS	Mathematical expression parser	191K	Crash	Apr 20/09
Small (and binded) parser. It can process almost any mathematical expression eg: 2+34-5*(3-46-4)+23... etc Variable definition allowed, and function declaration (not yet!)... WARNING: type #help for a brief of use. NO GUARANTIES! - CRASH -

GEN	Big Fixed Math	13K	Lucius L. Hilley III	Jun 2/08
An arbitrary precision math library with power, root, and logarithm functions. bigfixed.e is the only include file needed. math.e is some of his prototype code. Proof of concept.

GEN	Portfolio Optimizer	50K	Robert Craig	Nov 9/07
Got the "subprime mortgage" blues? This program attempts to maximize return while minimizing risk in an investment portfolio. It tests millions of combinations of funds, eliminating all combinations that would seem to have both lower return and higher risk than some other combination. For each level of desired return, it shows you the safest possible combination of funds that should achieve that return.

GEN	Einstein's Riddle	23K	Juergen Luethje	Sep 27/07
Extremely fast program for solving a notorious logical puzzle known as 'Einstein's riddle'. Sep 27: updated contact information

GEN	Sum words function	1K	Igor Galanin	Sep 20/07
A function that writes number words (sum of money) and returns a text string in Russian. All comments in the source only in Russian.

GEN	Knapsack: simple and fast	2K	Ricardo Forno	Sep 2/07
A very simple but also very fast knapsack algorithm. Useful to: fill DVD's to the brim, equitibly divide goods, etc. Sep 2: Made algorithm somewhat faster. Added a sub-algorithm to show all possible solutions for each goal.

GEN	Flat math evaluation library	9K	CChris	Aug 15/07
A mathematical expression library based on M. Stachon mseval.e. Returns a sequence of flat tokens, which are easier to manipulate. Can normalise an expression - one operator by pair of parentheses. Multiple variables supported. Doc can be generated using makedoc.exw from win32lib\Demo.

GEN	Rounding function	1K	Jean-Marc DURO	Mar 25/07
Rounds atom a to n decimals (ex: round(112.234, 1) = 112.2). n may be negative (ex: round(112, -2) = 100)

GEN	2STROKE	330K	Mike Duffy	Jan 24/07
2-stroke exhaust design. Calculate n stage diffusers and lobster back bends. Automatically calculate all cone projections. Simple (2D) on screen graphics. Editor for cone sections with skewed and rotated ends. Outputs flat panel as TXT DXF PS EPS. Will split projections for printer sheets. Math routines and a multi-mode text/svga input routine, are in separate include files. Jan 24: Fixed bug in on-screen graphics, updated documents.

GEN	Number e with thousands of digits	12K	Jaime Marcos	Oct 20/06
A very fast program that computes the number e to thousands of decimal digits. The output is written as a text file, num_e.txt. For example, to compute e to 21000 decimal digits on a Pentium III at 845 MHz, it took only 37.18 seconds.

GEN	Generalized Runge-Kutta Numerical Integration for Stiff ODEs	138K	Don Cahela	Mar 8/06
Numerical integration of "stiff" ordinary differential equations by generalized Runge-Kutta method. Problems with jacobian matrices of nxn, tridiagonal, pentadiagonal, block tridiagonal jacobian matrices, and block tridiagonal with periodic boundary conditions are covered. Examples included. Mar 8: Added "contls" to parameter list. See parameter estimation in ODEs.

WIN	ParticleDraw (drawing progam / particle simulator)	517K	John Ringland	Feb 27/06
ParticleDraw is a novel Windows drawing program powered by a state of the art general system simulation engine. The brushes are dynamic systems of particles with interesting behaviours, which you can completely customise. This program is an implementation of abstract mathematics that arose from metaphysical research. It provides a virtual reality generative process that manifests virtual universes with fundamental properties similar to our own. This program is still in development and is evolving rapidly, it is entirely free with full source code and detailed information on the website. There is also another simple drawing program and a "Game of Life" program. See screen shots and more information or see the Gallery. Feb 27: ported to Windows with full menu system; psychedelic drawing functionality; better handling; zoom & pan

GEN	Triangle library	16K	CChris	Feb 26/06
This library allows handling triangles in 3-dimensional space. It can determine the shadow of an object (a collection of triangles) casts on another, and has a rendering function allowing subtle coloring under Windows. This v0.1 has ample room for additions.

GEN	Math Library	20K	Al Getz	Feb 12/06
A math library with complex argument handling and algebraic solutions to Quadratic and Cubic equations, as well as a full implementation of Newton's method in one variable for solving equations numerically. Also handles trig functions with complex arguments. Many demo function calls included. Feb 12: Small fix and added taking square root of a negative number to the demos.

DOS	SMN Particle Simulator	226K	John Ringland	Feb 5/06
System Matrix Notation (SMN) is a new mathematical methodology for the representation, analysis and simulation of general systems. "SMN Particle Simulator" is a simple example implementation of SMN in the context of systems of particles (as a general proof-of-concept for the mathematical methodology). The program allows one to easily create and interact with systems of particles as one watches them evolve on the screen. There is also a dynamic drawing program and a "Game of Life" program. In general any type of system can be modeled and future versions of SMN will allow for arbitrary general systems and advanced analysis techniques. To view screen shots or read more information see: www.Anandavala.info/TASTMOTNOR/code/v3.2b/SMNPS3_2b.html Feb 5: Now there's three example programs, each with updated features such as zoom, stepping, etc.


GEN	Calculations with long numbers	8K	David Money	Jan 25/06
A text string representing a floating point number of any length, in any base, is converted to a sequence. Routines are provided for basic math functions, and converting to any other base. The results can then be converted back to a text string for display. Jan 25: Fixed bug with base conversion routine. Added RPN calculator demo.

GEN	Base Converter (beta1)	3K	jxliv7 - jon	Dec 27/05
This include file (BC_beta_1.e) and DEMO (BC_demo.exw) converts integers as large as 1,073,741,823 to numbers in any base from 2 to 1,073,741,823, and vice versa. Beta limited to integers only. Source included. Documented.

WIN	UCalc Wrapper and Calculator	8K	Alex Chamberlain	Oct 28/05
DLL Wrapper of ucalc32.dll - a very fast and accurate math expression evaluator. Also included is a calculator that uses the program. Oct 28: Version 1.b. No longer includes the download from ucalc.com (license violation). You must download UCalc FMP from http://www.ucalc.com. Now has Documentation. Beta - Very Little Testing. Please sort out/report bugs.

GEN	Gridcalc	5K	Michael J. Sabal	Mar 11/05
A set of functions to convert from Maidenhead grids to latitute / longitude (decimal) and back, miles to kilometers and back, as well as to calculate distance and bearing between two points. No documentation yet, but it should be fairly clear what's going on. Keep in mind the US and western Europe are negative longitude, and eastern Europe and Asia are positive longitude.

GEN	Amortization Tables	5K	Kenneth Rhodes	Jan 28/05
A simple program that calculates monthly payments on loans, mortgages etc. Jan 28: Now cross platform and uses Ricardo Forno's rounding routines from genfunc.e and Mike Nelson's text formtest.e.

DOS	Short Circuit Computation Program	22K	Gerardo V. Lozada	Apr 22/04
Calculate fault currents due to short circuits in electric utility power systems using the Rake model in conjunction with the Kron reduction method. Simulates all types of shunt faults: 3-phase, single-line-to-ground, line-to-line and double-line-t-ground. Apr 22: Includes missing modified math.e needed by the program.

DOS	Newton-Raphson Loadflow Program	19K	Gerardo V. Lozada	Apr 21/04
A program to compute the voltages and power flows within an electric utility power system using the Newton-Raphson method.

WIN	STEELSNAKES - Exhaust Pipes Design	205K	Claudio Emiliozzi	Jan 2/04
A multi-cone exhaust pipes design program. This simple program allows you to design and print the external surfaces of cone sections (with slanted cuts) that can be arranged to obtain a professional Exhaust Pipe for 2 Stroke engines.

GEN	Permutations and Combinations of up to 13 things	2K	Ralph Gillott	Nov 6/03
1. permutation number q of s: perm_qs(3,"abcd")= "acbd" 2. selection q of r things from s: select_qrs(19,3,"abcde") = "bde" 3. permutation q of r things from s: perm_qrs(15,3,"abcd") = "cad"

WIN	Boids	5K	Matthew Lewis	Sep 5/03
Win32Lib implementation of the classic complexity theory example showing emergent behavior from a simple set of rules. You can watch the Boids fly around in 3D and change parameters that affect their behavior.

WIN	Distance Calculator	228K	Michael S. Thompson	Sep 5/03
A program for calculating road distances between cities. It uses Djikstra's algorithm. Source and executable included. Requires Win32Lib (included)

WIN	Math Problem Generator	142K	Jon Sas	Jun 24/03
This generates a page of random math problems. Addition, subtraction, multiplication and division.

GEN	Cipher Tools	29K	C. J. Silver	Jan 3/03
A set of Euphoria tools for using ciphers, plus some other useful libraries. This was developed by a 13-year old for a science fair project.

GEN	Big Math	216K	Matthew Lewis	Nov 12/02
A library that lets you perform calculations using numbers with close to 10,000 digits. The numbers can be extremely large and/or extremely precise. He uses a sophisticated technique based on the Chinese Remainder Theorem, as well as an EDS database to store previously-calculated results.

WIN	Quadratic Equation	1K	Rubens Monteiro Luciano	May 19/02
A very simple demo that might help a beginner to get started with Win32Lib.

WIN	Travelling Salesman	6K	Mic	Apr 28/02
A program that solves the Travelling Salesman problem, using a combination of Ant Colony Optimization, and Q-Learning. With some minor changes, this program can be made to run on the other platforms. Search for other Travelling Salesman solutions in the archive.

GEN	Optimal Scaling	35K	Alexei van Baaren	Nov 1/01
A program used for scaling of data obtained by subjective means (i.e. opinion polls, surveys etc.).

GEN	Aerodynamic Calculations	2K	Erik van Kampen	Apr 21/01
A program that calculates the lift generated by an airplane wing of a given shape and size.

GEN	Neural Network Bug Simulator	3K	John McAdam	Mar 12/01
A graphical educational program where a feedforward neural network helps a bug find food.

GEN	Linear Least Squares	16K	Rolf Schroeder	Feb 28/01
A linear least squares program for data reduction.


GEN	Non-Linear Least Squares	16K	Rolf Schroeder	Feb 28/01
A non-linear least squares program for data reduction.

GEN	Analysis of Linear Models	33K	Alexei van Baaren	Jan 25/01
A program that helps you to analyse linear mathematical models including regression and covariance analysis.

DOS	Travelling Salesman Problem	49K	Jiri Babor	Nov 22/00
Jiri solves the famous travelling salesman problem with a program that uses his attractive new DOS widgets GUI package. Nov 22: new interface and widgets, includes standard 200-city set from Scientific American. See also the TSP programs by Jerry Story and Art Adamson (below).

WIN	Chaos Grapher	106K	SR Williamson	Jul 21/00
A program that lets you experiment with functions that become chaotic for certain values.

GEN	Factorial and Primes	8K	Abhay	Jan 25/00
Some simple programs for computing factorials and prime numbers. Jan 25: new programs plus a .doc file.

GEN	Convert to Large Base	2K	C. K. Lester	Jan 19/00
A program that converts base 10 numbers to a large base, such as 254. It reduces the number of digits and saves space.

DOS	Dado Dice Program	5K	Marcos Donnantuoni	Dec 20/99
A program that explores various combinations of dice.

GEN	Assorted Math Routines	11K	Laurence Draper	Nov 30/99
A collection of advanced math routines such as FFT, Big Numbers, prime numbers, encryption etc.

GEN	Statistics Program	1K	VonFreudenhowser	Aug 19/99
A program for performing a statistical calculation.

DOS	2-D Plotting Package	50K	Leonid Shulman	Apr 12/99
a fancy 2-d plotting package that includes a nice-looking demo.

GEN	Simultaneous Equations	1K	Laurence Draper	Apr 9/99
routines for solving N equations in N unknowns.

DOS	Neural Network	2K	Jeff Fielding	Apr 7/99
code for experimenting with Neural Networks.

DOS	Genetic Algorithms	7K	Jeff Fielding	Apr 5/99
code for experimenting with genetic algorithms. These are algorithms that are improved through "natural selection", i.e. "survival of the fittest".

DOS	Math Function Parsing and Plotting	305K	Detlef Reimers	Feb 24/99
a system for parsing and plotting math functions. He also included a Ghostscript program to display the resulting Postscript files. pkunzip with -d

GEN	Math Routines	2K	Andy Montgomery	Feb 5/99
an extensive math library. Feb 5: new routines added

DOS	Fuzzy Logic	12K	Hawke'	Oct 3/98
A library that allows Euphoria programs to use "fuzzy" logic in the decision making process. He fully explains the concept of "fuzzy" logic and he includes many examples and benchmarks.

DOS	Complex Numbers (with Fractal Demos)	5K	Nick Metcalfe	Jul 3/98
a library of routines for exploring fractal mathematics using complex numbers.

GEN	Ternary Trees	10K	Art Adamson	Jul 1/98
experiments with ternary trees, as opposed to the more common binary trees. Each node in the tree can have three children, rather than two. Note: You need the file WORDS.TXT from Junko Miura's spell checker (below).

GEN	Knapsack Problem	6K	Art Adamson	Nov 11/97
a program that tries to optimally pack a knapsack (or truck or bin or whatever).

DOS	Sine Wave	2K	Mr. Smily	May 22/97
a simple program that shows how to plot a sine wave


DOS	Command Line Calculator	5K	Matt Sephton	Apr 27/97
a handy little calculator. It does basic arithmetic plus hex and octal conversions.

GEN	Faster PI Calculation	2K	Michael Bolin	Mar 29/97
a modified PI.EX to run as fast as the compiled Microsoft Basic version

DOS	Scientific American	4K	Gavin Doig	Mar 29/97
two interesting programs from Scientific American. One is a genetic algorithm that uses survival of the fittest to find the best solution to a problem. The other is based on the Prisoner's Dilemma, a problem from the branch of mathematics known as Game Theory.

GEN	Calculate PI	3K	James Powell	Mar 25/97
Calculate PI to as many digits as you like. Both a Euphoria and a QBasic version are included.

DOS	Trigonometry	1K	Nathan Dudek	Mar 17/97
a trigonometry program

DOS	Travelling Salesman	6K	Art Adamson	Feb 22/97
an approximate solution to the "Travelling Salesman" problem - what is the shortest route that takes you through all the cities you have to visit?

DOS	3d graphing	8K	J.F. Soucaille	Feb 13/97
a program that lets you graph functions as 3-D surfaces. You can dynamically adjust parameters and the view point of the observer.

GEN	Root Finder	4K	Art Adamson	Feb 6/97
a program that finds the roots (solutions) of polynomial equations.

GEN	Matrix Operations	4K	J.F. Soucaille	Jan 30/97
a matrix and simultaneous equation package that uses fast operations on entire sequences, as well as strongly typed code.

GEN	Invert a matrix	6K	Art Adamson	Jan 23/97
matrix manipulation routines, including matrix inverse and solving simultaneous equations.

GEN	Inverse Math Functions	1K	J.F. Soucaille	Jan 16/97
useful functions such as arctan, arcsin and arccos written in Euphoria. Note: arctan, arcsin and arccos are included in Euphoria v2.1

DOS	Y vs X graphing	5K	Andrew Baron	Jan 3/97
a graph program. It uses David Cuny's expression evaluation code. version 0.5b

DOS	Math, geometry and metric conversions	4K	Dave Brock	Oct 2/96
library routines for advanced math, geometry, metric conversions and sequence manipulation.



This site is maintained by Robert Craig and Junko C. Miura of Rapid Deployment Software