Theano/Theano — pull request #315 by pascanur (2011-12-29 14:05:14+00:00)
Title: Scan grad computation fixed

This pull request refers to a bug reported by Timothy Lillicrap. The is a partial fix. Namely it only corrects the numerc value of the gradients when dealing with multiple taps states. However it does not fix the shape mismatch introduced most probably by the save mem optimization for scan.