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MathGroup Archive 2005

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Extended Expand and ExpandAll.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg54022] Extended Expand and ExpandAll.
  • From: Josef Karthauser <joe at tao.org.uk>
  • Date: Tue, 8 Feb 2005 05:30:57 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

ExpandAll is a very useful function.  It doesn't however know how to
expand arbitary functions.  Imagine that I've got an F[a + b] which I
know is distributive and so,

    F[a_ + b_] -> F[a] + F[b].

Is there any way of letting Expand/ExpandAll know that it can also
expand F[] objects?

Joe
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