sympy/sympy — pull request #902 by mrocklin (2011-12-28 05:50:38+00:00)
Title: Random Variables

This pull request introduces a random variable type into SymPy. It allows one to model statistical problems and make queries. This is the main pull request from my GSoC project. See the following links for textual discussion:
https://github.com/sympy/sympy/wiki/GSoC-2011-Report-Matthew-Rocklin:-Random-Variables
http://sympystats.wordpress.com/

There are still some issues that need to be ironed out. In particular the tests for continuous random variables attempt long and complex integrals which take a long time and often hang. These depend on the ness01's gsoc3 branch /pull-request which should be merged before this pull request.