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MathGroup Archive 1998

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Simplifying Derivatives

  • To: mathgroup at smc.vnet.net
  • Subject: [mg13051] Simplifying Derivatives
  • From: kcrumpto at redwood.dn.hac.com (Kenneth S. Crumpton)
  • Date: Sat, 4 Jul 1998 16:44:55 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

I am computing symbolically derivatives of orbit equations.  The answers
are coming out correctly but how do I keep it from substituting what
various symbols are equal to ? (E.g., r = sqrt(x^2+y^2+z^2); I just
want to see r in the answer and not the expansion) Thanks.

Steve Crumpton
Systems Engineer, Raytheon


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