Transformation utility to rotate coordinates in G-Code files
Precision Trigonometry: Advanced Calculator for Complex Math
Comet open source tandem mass spectrometry (MS/MS) search engine.
Linux for Arduino and Makers developers
Flexible and eXpandable Cpu simulation
Electronic design and programming tools suite like Eagle, MpLab
Powerfull pre-processor
C++/C library to construct Excel .xls files in code.
GladTeX -- embed LaTeX-quality images in HTML
realistic truck simulator with 3D graphics done from zero