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Reduce/Solve

• To: mathgroup at smc.vnet.net
• Subject: [mg49912] Reduce/Solve
• From: "Dr A.H. Harker" <a.harker at ucl.ac.uk>
• Date: Thu, 5 Aug 2004 09:22:47 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Dear All,
         I tend to think of Reduce as a more powerful tool than Solve,
yet with

eq = J == J0 (1 + r/d) Exp[-r/d]
ss = Solve[eq, r]
tt = Reduce[eq, r]

 I get useful output from Solve, but Reduce returns the expression
unevaluated. What am I missing?  Mathematica 5.0.0.0 under Windows XP.

       Tony 

 Dr A.H. Harker
 Director of Postgraduate Studies
 Deputy Head, Condensed Matter and Materials Physics Group
 Department of Physics and Astronomy
 University College London
 Gower Street
 LONDON
 WC1E  6BT
 (44)(0)207 679 3404
 a.harker at ucl.ac.uk

• Follow-Ups:
  • Re: Reduce/Solve
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>