v2.4 [Oct 30, 2011] OpenSim 2.4 includes faster and more robust tools for Inverse Dynamics and Inverse Kinematics, new visualization tools, enhanced access for API users, and several usability improvements.
IrriPro
Generate 3D STL files of gears for real printing
R Project: Analyser for biochemistry students and scientists
A free image curve extract tool that is simple and easy to use
Let your Children learn easily
