From: Eric Luo <eric.python@126.com>
Date: 2006-03-29T13:08:44+09:00
Subject: Re: Noob: The ruby way to multiple Array by multiple?

  Ryan> class Array
  Ryan> def x(b)
  Ryan> a = self
  Ryan> (a * b.size).zip(b * a.size)
  Ryan> end
  Ryan> end

  Ryan> a.x b
  Ryan> => [[1, 4], [2, 5], [3, 6], [1, 4], [2, 5], [3, 6], [1, 4], [2, 5],  
  Ryan> [3, 6]]

  Thanks for your hint, It seems so simple and pretty.