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Simplify using custom function

  • To: mathgroup at
  • Subject: [mg47676] Simplify using custom function
  • From: Jens <jens at>
  • Date: Wed, 21 Apr 2004 05:23:20 -0400 (EDT)
  • Sender: owner-wri-mathgroup at

What I'm trying to achieve is to find a certain function in a more
complicated expression:

example:    complicated expression: -1+2 x +2 e^x
	    function: f[x_]=x+e^x

	    Mathematica should return: -1+2 f[x]

I've been looking at TransformationFunctions and FullSimplify, but did
not succeed in defining a transformation function so far. How do I do
that? (It's Mathematica 5.0)


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