Open Source Tcl Mathematics Software

Maxima is a computer algebra system comparable to commercial systems like Mathematica and Maple. It emphasizes symbolic mathematical computation: algebra, trigonometry, calculus, and much more. For example, Maxima solves x^2-r*x-s^2-r*s=0 giving the symbolic results [x=r+s, x=-s]. Maxima can calculate with exact integers and fractions, native floating-point and high-precision big floats. Maxima has user-friendly front-ends, an on-line manual, plotting commands, and numerical libraries. Users can write programs in its native programming language, and many have contributed useful packages in a variety of areas over the decades. Maxima is GPL-licensed and largely written in Common Lisp. Executables can be downloaded for Windows, Mac, Linux, and Android; source code is also available. An active community maintains and extends the system. Maxima is widely used. Additional add-on packages for Maxima can be found at: https://github.com/maxima-project-on-github/maxima-packages

ASCEND is a modelling environment and solver for large or small systems of non-linear equations, for use in engineering, thermodynamics, chemistry, physics, mathematics and biology. Solvers for both steady and dynamic (NLA & DAE) problems, are provid

surfit is an open source and free gridding and contouring software. surfit can do interpolation/approximation of points, contours and surfaces, can take fault lines and trend surfaces into account, can use inequalities and other conditions. Supports a lo

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.

A library including the whole bunch of standard algorithms in graph optimization and drawing. On top of this, a GUI for manipulating and editing of graphs.

A library for multiple precision math - arbitrarily large numbers - in TCL. Based on the original mpexpr library from Tom Poindexter.

This project aims to develop open source psychometric data analysis software, including estimation software for Rasch and Item Response Theory (IRT) models for both dichotomous and polytomous test items.

UniGNUPlot -an easy program for persons who wants use all the power of GNUPlot, but have no time to learn how! -Graphic based on Tk/TCL...

*** This page is no longer used by the Dasher project - please see http://www.inference.phy.cam.ac.uk/dasher/ *** Dasher is a data entry interface incorporating language modelling and driven by continuous two-dimensional gestures, e.g. a mouse, a stylus

Project provides some Tcl/Tk procedure for manipulating Biology data. And, attributed to the clarity of the Tcl code, it is also useful for education.

Efficient Symbolic Tools package (EST) is a BDD based tool for the formal verification of concurrent systems. Its advantages are flexibility, portability and an efficient memory management. It runs under different OS, including Linux and Windows 2000/XP.

GPLconx is an educational visualization tool that allows exploration of lines and conic sections in three models of 2-D hyperbolic geometry.

Matlab alternative. Scilab alternative. GNU Octave alternative. Mathematics software for numerical computation. Ordinary differential equations solver and finite elements solver. It has a console script interpreter, as well as a graphical interface script interpreter, for entering equations and statements, and a line plot display.

The MetCal/SPA package provides diagnostic resources for users and developers of meteorological apps. The Shared Procedure Archive is a dynamic set of file I/O, analysis routines and APIs for third party packages accessible through the MetCal GUI.

GNU Autoconf, Automake and Libtool scripts and makefiles for the Open CASCADE solid modeler. http://www.opencascade.org

RGEN is a library consisting of random number generator and data accumulation classes.

RReportGenerator aims to provide a simple and user-friendly multi-platform graphical user interface (GUI) allowing to run routine statistical analysis using R via predefined analysis scenarios to produce reports in pdf-format.

Tcl n-dimensional array processor

Ordinary Differential Equation (ODE) solver for Tcl. Handles both stiff and non-stiff sets of equations; does time-evolved initial value problems and root finding. Based on the popular Lawrence Livermore solver LSODE.

The Yupana was an ancient calculating device of the Incas. This simple program compares different theories: - positional notation * Base 10 by H. Wassen (representation, addition) * Base 10 by C. Radicati di Primeglio (representation, addition, subtraction, multiplication) * Base 10 by W. Burns Glynn (representation, addition, multiplication) * Base 40 by N. De Pasquale (representation) - sign-value notation * Powers of ten by C. Florio (representation, addition, multiplication) GUI & Manual main translations: en, es, it Only GUI translations (alpha version): qu, pt, fr, de, ro, ru, jp

sparse linear algebra library, with emphasis on preconditioned Krylov subspace methods for the solution of linear systems of equations

Ytk is a Tcl/Tk program which adds menus, buttons and features to the basic command line driven Yorick program and language. It also enables usage of all Tcl/Tk widgets and functions including buttons, sliders, checkboxes, and other typical TK widgets to

The main scope of the program is to take Thermo-Calc or Dictra (both registered trademarks) and transform them into nicely formatted encapsulated postscript diagrams, generated by gnuplot. But exp2plt can also be used as a graphical interface to gnuplot.

Tcl binding to levmar library implementing Levenberg-Marquardt optimization algorithm often used in data fitting. Levmartcl is a standard Tcl extension providing command interface to levmar functionality. This library is only a wrapper of <levmar> which actually performs the work. See the <levmar> home site for details: http://www.ics.forth.gr/~lourakis/levmar/