checking the sign of all terms in a long expression
- To: mathgroup at smc.vnet.net
- Subject: [mg132555] checking the sign of all terms in a long expression
- From: dantimatter <google at dantimatter.com>
- Date: Fri, 11 Apr 2014 02:10:09 -0400 (EDT)
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hello all is there to check the signs of all terms in a symbolic expression, like toCheck = a + a b + a b c + a c - b + bc + d .... in this case, with the assumption that the a, b, c etc are all positive, only one term is negative (b by itself) and the rest are positive. I have expressions like this that have a hundred or more terms and i'm worried i might not be catching all those that are of a different sign. thanks
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- Re: checking the sign of all terms in a long expression
- From: Bob Hanlon <hanlonr357@gmail.com>
- Re: checking the sign of all terms in a long expression
- From: Murray Eisenberg <murray@math.umass.edu>
- Re: checking the sign of all terms in a long expression
- From: Bob Hanlon <hanlonr357@gmail.com>
- R: checking the sign of all terms in a long expression
- From: "Brambilla Roberto Luigi (RSE)" <Roberto.Brambilla@rse-web.it>
- Re: checking the sign of all terms in a long expression