Theano/Theano — pull request #686 by jsalvatier (2012-06-09 17:57:17+00:00)
Title: Added GammaLn and Psi functions

I think I've added the appropriate tests and such. I couldn't get the tests to run without errors, but I think this is unrelated. The errors seemed to be compilation errors and I was able to get my functions to compile fine.