On Sat, Mar 15, 2014 at 2:25 PM, Alexander Belopolsky <ndar...@mac.com>wrote:
> On Fri, Mar 14, 2014 at 11:41 PM, Nathaniel Smith <n...@pobox.com> wrote: > >> Here's the main blocker for adding a matrix multiply operator '@' to >> Python: we need to decide what we think its precedence and associativity >> should be. > > > I am not ready to form my own opinion, but I hope the following will help > shaping the discussion. One more question that I think should be answered by the PEP and may influence the associativity decision is what happens if in an A @ B @ C expression, each operand has its own type that defines __matmul__ and __rmatmul__? For example, A can be an ndarray, B a sympy expression and C a pyoperator.
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