How to choose real positive solutions only?

*To*: mathgroup at smc.vnet.net*Subject*: [mg74301] How to choose real positive solutions only?*From*: "Dix, Manfredo A " <mdix at tulane.edu>*Date*: Sun, 18 Mar 2007 00:41:29 -0500 (EST)

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