A logic IDE for the sentential logic and the predicate logic.
Simple calculator
An object oriented C++ library for computer algebra
Free vector,quaternion,matrix math library
Computer calculations made easy
A fast prime number generator based on the Sieve of Eratosthenes
GladTeX -- embed LaTeX-quality images in HTML
Programmable graphical scientific calculator
Command line scientific calculator
A package for Isogeometric Analysis in Octave and Matlab
Manual counter with the keyboard or the mouse on images