Merge pull request #506 from ynd/sparse_sandbox

added new sparse ops in sanbox

Merge pull request #506 from ynd/sparse_sandbox
1fef32f1 · nouiz · f58f3152 · 2227af02 · 1fef32f1
--- a/theano/sparse/sandbox/sp2.py
+++ b/theano/sparse/sandbox/sp2.py