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I have a system of 379 linear equations and 6325 unknowns. Does anyone know of a tool that can generate some (non-negative) solutions that satisfy this system? I know there are infinitely many, but it would be useful just to have a few for my purposes.

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Are the equations all linear? –  Eric Towers Jun 4 at 22:36
    
Yes, they are linear. Sorry I didn't mention that. –  Ziv Jun 4 at 22:38
    
Mathematica could probably handle this. –  DanZimm Jun 4 at 22:42
    
How do you know there is a non-negative solution? You could express the problem as a linear program. –  copper.hat Jun 6 at 15:03

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