From: Brian Candler <b.candler@...>
Date: 2010-09-28T15:05:54+09:00
Subject: Re: copying a matrix.

John Smith wrote:
> How can I create an array copy that
> does not reference the same object...
> 
> I have tried this without luck.
> 
> m2 = m.map { |e| e }

Try:
m2 = m.map { |e| e.dup }
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