Proposal: add vector arithmetic to array module
phr-n2001 at nightsong.com
Mon Sep 24 12:02:34 CEST 2001
Actually, the above suggestion of making the infix arithmetic
operators do pointwise arithmetic is no good, because of what happens
to "+". It currently concatenates the arrays, similar to adding lists
together, and that shouldn't be messed up.
Next best thing is to just add array function calls:
array.add(a,b) returns a new array a+b (pointwise addition)
array.add(a,b,c) stores the result in c and returns c (avoids
allocating a new array)
Similarly for subtraction, multiplication, boolean operations, etc.
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