From: Dan Diebolt <dandiebolt@...>
Date: 2005-12-12T12:14:12+09:00
Subject: Re: Calculating single-digit summands

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># ... or ...
>def sum( enum )
>  inject { |sum, n| sum + n }
>end
   
  Don't you need enum. ?
   
  def sum(enum)
   enum.inject {|sum,n| sum+n}
 end

			
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