From: ibotty <me@...>
Date: 2003-08-29T20:18:14+09:00
Subject: multiply all array with array

before i spent to many words describing something so simple:

say, i have:
a = [1,2,3] and b = [4,5,6]
and i want to get another array, with c[ix] = a[ix] * b[ix].
(i want to get c = [4,10,18])

is there a builtin function in array.rb (that i have missed).

atm, i use a block to traverse thru every single element, but this still
makes one big or 2 small lines.
(e. g.: c =[]; a.each_with_index{ |ix| c[ix] = a[ix] * b[ix] } )

this should be way more elegant ;)

~ibotty