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MathGroup Archive 1996

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patterns

  • To: mathgroup at smc.vnet.net
  • Subject: [mg3727] patterns
  • From: Susan Rempe <rempe at euclid.chem.washington.edu>
  • Date: Thu, 11 Apr 1996 02:52:27 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

I have a list of numbers and symbols.
How can I collect all the members of the list
which have a common denominator?

ex.  list={Sin[theta]/r, Cos[theta]/(r*s), 2*Csc[theta]/(2*r)}

 Say I want to collect all members of the list with r in the denominator;

 i.e.  answer=Sin[theta]/r;

********************************************
Susan Rempe				   *
University of Washington		   *
Department of Chemistry		           *
Box 351700				   *
Seattle, WA  98195-1700		           *
					   *
(206)685-2951				   *
rempe at u.washington.edu	                   *
********************************************


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