Automatic Differentiation

A C++ library that is unlicensed and freely available that performs AD is posted below. A discussion from Grasshopper3D.

Links:
http://www.grasshopper3d.com/forum/topics/gh-feature-request-automatic

Attachment: Fast Automatic Differentiation in C++.zip

http://www.codeproject.com/KB/cpp/fadcpp.aspx

http://en.wikipedia.org/wiki/Automatic_differentiation