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Re: How to choose real positive solutions only?



Hi Manfred,

you can use Reduce with the domain: Reals.

Daniel



Dix, Manfredo A wrote:

> Hello,

> this question probably came up before, but anyway:

> 

> suppose I have a system of 3 equations and 3 unknowns,

> which I want to solve numerically with NSolve.

> They are polynomial of degree "n" so that I get n solutions.

> 

> Is there a way to tell Mathematica to just return the

> real positive solutions, and dismiss the imaginary and negative

> ones?

> 

> thank you so much for any help,

> cordially,

> 

> Manfred

> mdix at tulane.edu

> 

> 




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