sympy/sympy — pull request #2636 by zanzibar7 (2013-11-28 05:04:32+00:00)
Title: Better docs for Wild, improved tests for excluded

While trying to better understand the Wild symbol, I found the 'exclude' key word wasn't documented. In the process of trying to make sense of it's behavior, I found a number of the tests using 'exclude' didn't really needed.

This patch adds some docs to Wild, removes the obsolete tests, and implements some new ones that better document the 'exclude'.