[Numpy-discussion] Extending ufunc signature syntax for matmul, frozen dimensions

[Marten van Kerkwijk]

Hi Matti,

This sounds great. For completeness, you omitted the vector-vector
case for matmul '(k),(k)->()' - but the suggested new signature for
`matmul` would cover that case as well, so not a problem.

All the best,

Marten