From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-08-07T07:45:21+09:00
Subject: Re: Need help detecting overlapping ranges


On Aug 6, 2008, at 4:36 PM, Bryan Richardson wrote:

> Can you elaborate at all?


cfp:~ > ruby -e' p ( 0 ... 1 ).to_a '
[0]


cfp:~ > ruby -e' p ( 0 .. 1 ).to_a '
[0, 1]


one range included the endpoint, one does not.  with integer ranges  
you could guess the prior end point, but not with floats

cfp:~ > ruby -e' p ( 0 ... 1.0 ).to_a '
[0]


cfp:~ > ruby -e' p ( 0 ... 1.0 ).include?(0.999999999999999) '
true


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