From: jake kaiden <lists@...>
Date: 2012-04-15T11:49:16+09:00
Subject: Re: Creating an array containing sums of combinations of ranges

hi Jeff,

  have you checked out Array#product ?  seems like that might do the 
trick for you...

a1 = ['n', 'm']
a2 = ['x', 'y']

p a1.product(a2)

=> [["n", "x"], ["n", "y"], ["m", "x"], ["m", "y"]]

  if your first array is composed of ranges, those can easily be 
converted into arrays...

  hth-

  - j

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