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Re: How to choose real positive solutions?


soln = NSolve[eqns, x];

Select[soln,FreeQ[x/.#,Complex]&&(x/.#)>0&]


Bob Hanlon

---- mandix <mdix at tulane.edu> wrote: 
> Hi,
> suppose I want to solve a system of 3 equations and 3 unknowns
> (polynomial of degree whatever, say n). Is there a way to tell NSolve
> to return only real and positive solutions (and ignore the rest)?
> 
> thanks you so much,
> 
> Manfred



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