Anne Archibald wrote: > > And the scope of improvement would be very limited; an > expression like A*B+C*D would be much more efficient, probably, if the > whole expression were evaluated at once for each element (due to > memory locality and temporary allocation). But it is impossible for > numpy, sitting inside python as it does, to do that. > My understanding is that alternative implementations of python such as pypy makes this kind of things possible (at least in theory). I asked a question about this a few months ago:
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