Improve numerical gradient and fix tests (#4986)
* Numerical Gradient Improvement * fix * fix * fix * fix
E
Eric Junyuan Xie committed
3d78151a5078aa4d11eded4a79c86f61de926756
Parent: f4c6d55
Committed by GitHub <noreply@github.com>
on 2/13/2017, 7:14:59 AM