sympy/sympy — pull request #2011 by fitze (2013-04-14 01:43:19+00:00)
Title: Separated physics.mechanics documentation into multiple files.

I found it difficult to use the examples, since I wanted to look at only one example but it was necessary to scroll through a long webpage with other examples on it as well. I also changed a sentence or two in the documentation @hazelnusse, @moorepants, @gilbertgede, and @angadhn @sympy/mechanics.