Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2002
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2002

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Question about Replace

  • To: mathgroup at smc.vnet.net
  • Subject: [mg35689] Re: [mg35670] Question about Replace
  • From: "Xuguang\(Heather\) Zhang" <xuguang_zhang at hotmail.com>
  • Date: Fri, 26 Jul 2002 04:16:31 -0400 (EDT)
  • References: <7a.2a4ebef0.2a712bf7@aol.com>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi, Bob,

I tried ReplaceRepeated, however, I got the following answer:
x+y+z/(x+y)+e^(x+y)+(w*x)+y//. x+y->x

e^x+x+(w*x)+2y+z/x

In fact, there is still one more (x+y) term if we rewritten the answer. That
is e^x+(x+y)+y+(w*x)+z/x. Do you know how to get rid of it? Thanks.


----- Original Message -----
From: <BobHanlon at aol.com>
To: mathgroup at smc.vnet.net
Subject: [mg35689] Re: [mg35670] Question about Replace


>
> 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
>
>



  • Prev by Date: Re: Orientation of BarChart labels
  • Next by Date: Re: troubles with lists
  • Previous by thread: RE: Question about Replace
  • Next by thread: Re: Question about Replace