[Numpy-discussion] [help needed] associativity and precedence of '@'

[Charles R Harris]

I favor the weak right option.

1) Giving '*' higher precedence than `@` makes it easier, to my mind, to
parse out what is going to happen: all the element-wise multiplications,
followed by the matrix operations. I'd probably still use parenthesis for
clarity.

2) Right associative has the advantage of efficiency in many common use
cases, plus I tend to read matrix expressions from right to left.

Chuck
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