From: Gavin Kistner <gavin@...>
Date: 2005-08-11T22:51:38+09:00
Subject: Re: cartesian product - next to last version

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On Aug 11, 2005, at 5:06 AM, walter a kehowski wrote:
> Of course you might want a product in which the elements
> of that product are arrays. Any suggestions?

In such cases, I use the Vector class (require 'matrix') as the  
'atomic' unit. Then Array#flatten doesn't peek inside the Vectors and  
flatten them inappropriately.
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