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MathGroup Archive 1997

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Re: How to make Mathematica to return "Log[Exp[x]]" as x?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg5707] Re: [mg5669] How to make Mathematica to return "Log[Exp[x]]" as x?
  • From: Allan Hayes <hay at haystack.demon.co.uk>
  • Date: Sat, 11 Jan 1997 14:29:05 -0500
  • Sender: owner-wri-mathgroup at wolfram.com

chengli at uab.edu (Cheng Li)
in [mg5669] How to make Mathematica to return "Log[Exp[x]]" as x?
writes
> Could you please tell me how to let Mathematica to return
> "Log[Exp[x]]" as x?

Cheng,

PowerExpand[Log[Exp[x]]]
	x
	
PowerExpand[A[B[2 +Log[Exp[x]]]]]
	A[B[2 + x]]

Allan Hayes
hay at haystack.demon.co.uk
http://www.haystack.demon.co.uk


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