[Python-3000] Type parameterization

[Greg Ewing]

Travis E. Oliphant wrote:

> I'm sorry to interrupt the resting, but I just wanted to remind 
> everybody that Numerical computing people would still like a way to 
> distinguish between "element-by-element" multiplication and tensor 
> contraction (matrix multiplication).

A while back, there was talk of adding @ as a matrix
multiplication operator. What's the thought on that
nowadays?

Note that this wouldn't come under the head of an
"undefined operator", because it would be implemented
in the core as doing matrix multiplication on sequences
of sequences.

--
Greg