From: Ralph Shnelvar Date: 2012-04-15T10:54:57+09:00 Subject: Re: Creating an array containing sums of combinations of ranges Jeff, Saturday, April 14, 2012, 5:54:41 PM, you wrote: JC> I've got a puzzle I haven't been able to solve. I have two user-provided JC> arrays that look something like this: JC> [1..2, 2..3] JC> and JC> [2, 3] JC> I need to produce an array containing every possible sum of the ranges JC> multiplied by the corresponding member of the second array. i.e. if the JC> first array is [n, m] and the second array is [x, y], I need an array JC> containing every possible (nx + my). JC> Normally I'd do a couple of nested loops, but I need the arrays can be JC> of arbitrary lengths. JC> How should I go about this? Could you give some more examples. Your English is a bit ambiguous. Have you thought about using something like Cucumber to specify the problem? Ralph Shnelvar