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MathGroup Archive 2002

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Re: Question about Replace

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35687] Re: [mg35670] Question about Replace
  • From: BobHanlon at aol.com
  • Date: Fri, 26 Jul 2002 04:16:28 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

In a message dated 7/25/02 5:06:57 AM, xzhang2 at is2.dal.ca writes:

>I have an expression: x+y+z/(x+y)+e^(x+y)+w*x+y.... I want to replace
>any (x+y) term by x no matter how the expression looks like.  I tried
>"/."command. However, it does not work properly. Is there any simple way
>of doing this?

Use ReplaceRepeated

x+y+z/(x+y)+e^(x+y)+w*(x+y) //. x+y->x

e^x + w*x + x + z/x


Bob Hanlon
Chantilly, VA  USA


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