Torch is a machine learning library written in C++ that works on most Unix/Linux platforms. It can be used to train MLPs, RBFs, HMMs, Gaussian Mixtures, Kmeans, Mixtures of experts, Parzen Windows, KNN, and can be easily extended so that you can add your own machine learning algorithms.
XiStrat (aka 'Extended Strategy') is in particular about turn-based, networked multiplayer, non-cooperative, zero-sum, abstract strategy board games (e.g., Chess, Go, Reversi variants, etc.) on 3D-visualized polyhedra and contains a server, client GUI, autoplayer engine, utilities, and documentation. Related recreational modern mathematics (single agent, cellular automata, graph/group/complexity/knot theory, discrete geometry, algebra, combinatorics, and mathematical physics) is also dealt with.
Calcoo is a scientific calculator designed to provide maximum usability. Its features bitmapped button labels and display digits to improve readability, no double-function buttons, undo/redo buttons, copy/paste interaction with the clipboard, both RPN and algebraic modes, two memory registers with displays, displays for Y, Z, and T registers, and tick marks to separate thousands. Calcoo is written in C using the GTK+ widget library (v.2.2+).
The aim of xloops is to calculate 1PI Feynman diagrams with one or two closed loops for arbitrary processes in the Standard Model of particles and related theories. Results can be returned both algebraically and numerically. All necessary tensor integrals are treated for arbitrary masses and momenta. xloops-GiNaC is a partial re-implementation of the original xloops program based on the GiNaC C++ library for symbolic computation. It currently supports calculating one-loop 1-, 2-, and 3-point integrals to any tensor rank.
DigitizeIt digitizes scanned graphs and charts. Graphs can be loaded in nearly all common image formats (including gif, tiff, jpeg, bmp, png, psd, pcx, xbm, xpm, tga, pct), pasted from the clipboard, or imported via a screenshot. Digitizing of line and scatter plots occurs automatically, and manual digitizing via mouse clicks is also possible. Data values are transformed to a specified axes system and can be saved in ASCII format, ready to use in many other applications such as Microcal Origin or Excel. Axes can be linear, logarithmic, or reciprocal scale. Multiple data sets can be defined and edited. Tilted and distorted graphs can be handled. Comprehensive online help is included. Java 1.4 is required.
This Tiny Vector and Matrix template library uses Meta Templates and Expression Templates (ET) to evaluate results at compile time, thus making it fast for low-end systems. Temporaries are avoided because of this. The produced code is similar to hand-coded code, but the quality of the code still depends on the compiler and its version. The dimensions for vectors and matrices are static and bounded at compile time using template arguments.
The NumericalChameleon converts numbers with a precision of up to 1000 significant figures. It supports more than 3200 units in 82 categories, including lengths, areas, volumes, durations, bits & bytes, angles, temperatures, exchange rates, Roman numerals, spoken numbers, all 35 radixes, unicode, colorcode, int. dial codes, timezones, date calculations and more. You have unlimited access for adding, modifying, and deleting categories, units, and icons. Update exchange rates with the GUI or at the command line. All configuration data are stored in flat files.