[Haskell] simplex method?

[Johannes Waldmann]

Dear all, I could use a simple implementation of the simplex method
for linear programming. I found this:
http://haskelldsp.sourceforge.net/doc/Matrix.Simplex.html
but I'm not exactly sure how to use it. In the source
http://haskelldsp.sourceforge.net/Matrix/Simplex.hs
there's a function "solution", does it really give me a solution vector?
Thanks,
-- 
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