galculator is a scientific calculator in algebraic mode and RPN
[frozen] A library for computing cycles in graphs or in Java code.
A class library to use conformal geometric algebra in C#
Module Computation for Metabolic Networks
Javafastcomplex has both mutable and immutable complex numbers
ATMSP - A Tiny Mathematical Speed Parser
Matlab Toolbox for reading and writing videos.
Octave Eclipse GUI
FVM2 - F Virtual Machine v2
Nonlinear Krylov acceleration of fixed-point and Newton-like methods
Mathematical Parser for Java
Free Matlab toolbox to compute robust correlations
Lapack/quadprog QP for VBA/.Net/Java
A primality/compositeness tester for different types of numbers.
A slick interface to see various scale analysis algorithms in action.