SimplexOld:

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   Uses the simplex method to minimize the cost when solving the problem
   au = b and the cost is cu.
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   Form:
   x = Simplex( c, a, b )
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   ------
   Inputs
   ------
   c             (1,n)    Cost vector
   a             (3,n)    Constraint matrix
   b             (3,1)    Right-hand-side

   -------
   Outputs
   -------
   x             (n,1)    Solution

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Children:

Common: Math/Simplex2