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Mathematica Question

• To: mathgroup at smc.vnet.net
• Subject: [mg66358] Mathematica Question
• From: "Bharat Bhole" <bbhole at gmail.com>
• Date: Wed, 10 May 2006 06:34:47 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Hello:

Is there a way in Mathematica to check whether an algebraic expression is
positive or negative, and a way to specify conditions on the variables in
the expression? For example, is there a way to check whether x^2 is positive
for any real x? I want to check this for a complicated
expression...basically the sign of the second derivative of a function.

Thank you very much for your help.

Bharat.

• Follow-Ups:
  • Re: Mathematica Question
    • From: "Chris Chiasson" <chris@chiasson.name>
  • Re: Mathematica Question
    • From: Adriano Pascoletti <pascolet@dimi.uniud.it>