Commit Graph
1 Commits
Author SHA1 Message Date
Rowan Cockett 0885b72577 Zero and Identity - Useful for writing derivatives.
These should work with sparse matrices and numpy arrays.

```python
	z = Zero()
	z*A == 0
	o = Identity()
	o*A == A
```
2015-10-30 12:21:30 -07:00