Re: Mathematica Question
- To: mathgroup at smc.vnet.net
- Subject: [mg66366] Re: Mathematica Question
- From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
- Date: Thu, 11 May 2006 02:14:10 -0400 (EDT)
- Organization: Uni Leipzig
- References: <e3shhl$m39$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi, FullSimplify[Positive[x^2], Element[x, Reals] && x != 0] Regards Jens "Bharat Bhole" <bbhole at gmail.com> schrieb im Newsbeitrag news:e3shhl$m39$1 at smc.vnet.net... | 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. | |