Open Source Mathematics Software - Page 13

Algae is a programming language for numerical analysis. We wrote it because we needed a fast and versatile tool, capable of handling large systems. Algae has been applied to interesting problems in aerospace and related fields for more than a decade.

Tkgames is a site for games written using the powerful tcl/tk language. These include my original tesselation puzzle Polypuzzle, and recent additions Hearts, Spider, Yahtzee and the tooo addictive, Tktk.

Triple-A (Automatic Analysis with Automata) is a full-featured library for (finite) automata written in Java with two powerful analysis tools (dealing with LTL model checking and Presburger arithmetics) and a graphical user interface built around it.

A C++ library to manipulate and create NURBS curves and surfaces.

The goal of the Fortran-to-Java project is to provide Java Application Programming Interfaces (APIs) to numerical libraries originally written in Fortran (particularly BLAS and LAPACK). The result of this work, JLAPACK, is distributed here.

Free computer algebra system, compatible with existing CAS, as a C++ library with various user interfaces (GUI with formal spreadsheet and exact dynamic geometry, on-line, readline, emacs, texmacs...).

Multi-categorization Recommendation Adjusting (MRA) is to optimize the results of recommendation based on traditional(basic) recommendation models, through introducing objective category information and taking use of the feature that users always get the habits of preferring certain categories. Besides this, there are two advantages of this improved model: 1) it can be easily applied to any kind of existing recommendation models. And 2) a controller is set in this improved model to provide controllable adjustment range, which thereby makes it possible to provide optional modes of recommendation aiming different kinds of users.

Math is a program designed to calculate roots of nonlinear equation, roots of system of linear equations, differentiate, integrate, approximate using LMS, matrix calculation using numerical methods for calculating results, estimated errors and much more. Math is also capable of drawing standard functions using graph dialog window to help with visualization functions, results, or approximation with given points and much more. All data can be exported in most common formats like PDF, PNG, TXT, etc.

SalStat is a small application for statistical analysis emphasising the sciences and social sciences (particularly Psychology). The project is designed around the user interface which has been designed to be simple to use. Think SPSS, but better!

- Save and open a Work/Project (spf) file - Single fitting/ Batch fitting (user defined custom func) - Matrix to XYZ in Tool menu - Symbol plot: makers, curve, landscape, bar, etc. - Implemented a 3d surface plot (GLSurface) based on OpenGL (ScienPlot v1.3.2 and above) - ColorMap surface, trisurface, Pie, Polar plots, and 3D height field, 3dBar, scatter plots (under developing), and more - Column by column plotting/calculation - LaTex commands enclosed by $ symbols can be used for the labels in Graph - Accept txt(Text) and csv(Comma separated values) formatted data - Save, copy, print Graph - Use spread sheets to display data - Textboard to organize the results - Graphs in a publishable quality - Source codes based on: Python Numpy Scipy Matplotlib WxPython Visvis etc. - Special functions - Drag and drop data files - Python console is back (since v1.3.3), capable of reusing column data - Debye and Guinier models for SANS / SAX data - More apps in our Web below

SimulME is a Java ME (J2ME) application with Queueing calculator, Stopwatch, Monte Carlo simulation, Random Number Generator (RNG), Probability distributions, Kolmogorov-Smirnov and Chi-square tests. It works with MIDP 2.0 and CLDC 1.1 profiles.

******************************************************* LTFAT was moved to Github https://github.com/ltfat. *******************************************************

Calculatrice graphique en français, destinée aux professeurs ou aux étudiants du collège et du lycée. Elle permet de faire du calcul formel, de tracer des courbes et des figures géométriques exportables en png, eps ou svg. Linux, Windows... Cette version n'est plus maintenue. Nous vous recommandons d'utiliser désormais la nouvelle version, nommée Géophar : http://sourceforge.net/projects/geophar

mXparser is highly flexible parser of math expressions. Software provides easy to use API for JAVA, Android, C# .NET/MONO (CLS). Main functionalities: - basic operators, i.e.: +, -, *, ^, ! - Boolean logic operators i.e.: or, and, xor - binary relations i.e.: =, <, > - math functions (large library of 1-arg, 2-arg, 3-arg - - functions) i.e.: sin, cos, Stirling numbers, log, inverse functions - constants (large library), i.e.: pi, e, golden ratio - n-args functions i.e.: greatest common divisor - iterated summation and product operators - differentiation and integration High flexibility: - user defined constants and arguments, both free - and dependent on other arguments + possibility of use in functions - user defined functions (both free and depended) - user defined recursive arguments + simple (controlled) recursion (1 recursive argument) - user defined recursive functions / expressions (any) - complex, many arguments, no limitation - internal syntax checkin

A declarative logic programming system with first-class relations embedded in a pure functional subset of Scheme. The system has true unions, fair scheduling, lexically-scoped logical variables, set-theoretical semantics, high performance without cuts

ADiGator is a source transformation via operator overloading tool for the automatic differentiation of mathematical functions written in MATLAB. Given a user written file, together with information on the inputs of said file, ADiGator uses forward mode automatic differentiation to generate a new file which contains the calculations required to compute the numeric derivatives of the original user function. Furthermore, these calculations are written entirely in the native MATLAB language, and thus the process may be repeated to obtain nth order derivative files. The package is particularly appealing for applications where the same derivative must be found at multiple different points, i.e. non-linear root finding/optimization, stiff ode integration, etc.

Aleph One is a highly sophisticated program for generating fractals. Some major features are: A built-in expression generator, 32-bit colouring schemes for the fractals, multi-threaded and multi-server rendering! WOW! And lots, lots more... The source code has moved to GitLab: https://gitlab.com/jmmcg/alephone

Bellman, named after the character in Lewis Carroll's The Hunting of the Snark, is a program for searching for catalytic interactions in Conway's Game of Life and potentially other similar cellular automata. Results are derived directly from the automaton's evolution rule, not generated from a list of candidate catalysts as with previous searchers.

A escape time orbit fractal renderer written in C#. Consists of two separate programs, one focused on high resolution and high quality rendering ("Buddhabrot Max"), the other focused on realtime exploration / zooming ("Buddhabrot Mag"). Uses multithreading and hardware acceleration. Allows creating of huge renderings (if enough memory is available) and saving files with full 32 bit float dynamic range as OpenEXR files. You can easily add new formulas which are then runtime compiled for maximum performance.

New version: CalcuFP program is a calculator software (beta version), has a wide range of mathematical functions, specific functions for different subjects (ex.- IPv4 functions), Apart from being able to have on hand an wide range of functions, allows to use different numbering systems WITHOUT CHANGING MODES. We can sum operations decimal, binary and hexadecimal mixed. Example. - 25 + BIN ('111 ') + HEX (' FF ') -> this is equivalent to adding the integer 25 +7 (binary) +255 (hexadecimal) = 287. Allows use of predefined variables and constants. Creating user functions. It has a programming section through type pascal scripts (still in testing), It has a multimedia viewer to store documentation that we have on hand for our daily tasks. Aside calculators comes with color coded for resistors, inductors and capacitors. Support matrix calculation. Solving systems of n equations. Periodic table of elements. QR code generator Create new User functions with pascal script.

Calculation of camshafts - allows to define a camshaft profile on the set trajectory which should provide the given mechanism. The trajectory can be set graphically, co-ordinates or function.

Qt4 GUI for scientific data analysis and visualization using Matlab (tm) style syntax. Link together Qt projects and other C++ libraries in an integrated user interface. For more information, visit: http://groups.google.com/group/chainlink

CompLearn is a general-purpose compression-based machine learning system that uses data compression to learn or data mine patterns in arbitrary data.

Preference (or approval) ballot tabulation to select winner(s) of election contests or rank decisions. Uses dropping cost minimization to combine two Condorcet methods: Cloneproof Schwartz Sequential Dropping and Tideman's Ranked Pairs.

DSOL is a full featured multi-formalism, distributed simulation environment developed at Delft University of Technology (The Netherlands). DSOL has support for discrete event and for continuous modeling. Formalisms supported are event scheduling, DEVS, flow-based simulation, and continuous modeling through sets of differential equations. The first release was introduced at IEEE's Winter Simulation Conference in 2002. Since then, numerous papers and PhD dissertations have been developed, with applications in the fields of transportation and traffic, logistics, supply chain management, gaming and training, health care, and many others.