Computer Algebra System written in Common Lisp
Framework for numerical computations, data analysis and visualisation
Precision Trigonometry: Advanced Calculator for Complex Math
Portable software and data related to Mersenne numbers
Mixed Integer Linear Programming (MILP) solver.
Fast rainflow counting written in C (C99)
TI graphing calculators <-> computer communication software
Functy is a 3D graph drawing package that generates immediate results.
Maximal Information-based Nonparametric Exploration
GladTeX -- embed LaTeX-quality images in HTML
A Univariate Time Series Analysis package in ANSI C
Library for spherical harmonic transforms (SHT)
Massively Parallel Graph processing on GPUs -- now part of Blazegraph
mathSuite Speed & Matrix Stream Processor
galculator is a scientific calculator in algebraic mode and RPN
Real-time interactive fractal zoomer
A compliation of Physics derived claculators
Java Decision Diagrams (BDD) libraries: JDD and JBDD