Theano/Theano — pull request #1614 by pascanur (2013-11-20 15:38:38+00:00)
Title: New fix grad scan

Fix of the Hessian issue.

The fix involves changing how some indexes are computed (for mitmot sequences). I've done a bit of math in my head and it feels right, but I'd like to have a second pair of eyes on that bit.