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Solve problem

• To: mathgroup at smc.vnet.net
• Subject: [mg97988] Solve problem
• From: "Bruno Campanini" <BC at gmail.com>
• Date: Fri, 27 Mar 2009 05:35:35 -0500 (EST)

I have a Solve[...] which gives me solutions like
{{b1 -> -2, a1 -> -1 }, {b1 -> 0.5, a1 -> 3}}
or like
{{a1 -> 1, b1 -> 3}}

How can I get the positive value for a1, which is  3
in the first case and  1  in the second one?

Bruno

• Follow-Ups:
  • Re: Solve problem
    • From: Adriano Pascoletti <adriano.pascoletti@dimi.uniud.it>