Simplex Algorithm

[ftneek]

I incorporated your changes and uploaded new files. Also now simplex_core returns ∅ for infeasible model with no solutions rather than "No solution" or the empty feasible region string, they all mean the same thing. If you want to avoid negating for infeasible max in simplex_le, the check is just

Code:

IF dir>0 AND c[1]!=∅ THEN c[1]:=-c[1] END;