GNU Octave - GNU Octave is a programming language for scientific computing.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.
Inference - Inference is a body measurement tool using a short questionnaire to otely capture over 50 body measurements without a measuring tape.
Xoctave - The Affordable Matlab alternative which makes you save money. Xoctave is a powerful software that is meant to unleash the power of GNU Octave by creating a complete scientific computing environment.
SMath Studio - Tiny, powerful, free mathematical program with WYSIWYG editor and complete units of measurements support.