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MathGroup Archive 2001

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Solving simultaneous equations with inequalities

  • To: mathgroup at smc.vnet.net
  • Subject: [mg31140] Solving simultaneous equations with inequalities
  • From: "Timie Milie" <milstead at cs.bris.ac.uk>
  • Date: Sat, 13 Oct 2001 02:47:05 -0400 (EDT)
  • Organization: University of Bristol, UK
  • Sender: owner-wri-mathgroup at wolfram.com

I am solving some simultaneous equations and getting four results because
the solution contains two square roots - produced because some of the
equations to solve are of the form x^2 = y^2 + z^2. Is there any way of
including the hint x>0 or 'I only want positive roots of x to be used' in
Solve[]?

P.S. I'm not actually solving for x, it gets eliminated in the result.

milstead at cs.bris.ac.uk




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