> I'm simply suggesting there is plenty of room for improvement. I even showed a version that did *exactly* what numpy does (AFAIK) that was three times the speed of numpy even executed by CPython. So there is some mystery there.
As I indicated in my earlier response, your version doesn't pass all of numpy's cross product unit tests. Fix that and submit a patch to the numpy maintainers. I suspect it would be accepted. Skip -- https://mail.python.org/mailman/listinfo/python-list
