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MathGroup Archive 2006

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Interval[{a,b}]-Interval[{a,b}] = 0?

  • To: mathgroup at
  • Subject: [mg66613] Interval[{a,b}]-Interval[{a,b}] = 0?
  • From: "Richard Fateman" <fateman at>
  • Date: Wed, 24 May 2006 03:01:49 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

Is this a bug or a feature?
Notice that Interval[{-1,1}]-Interval[{-1,1}] is Interval[{-2,2}].

(I'm using Mathematica 5.1)


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