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I used MC15M030 to solving an optimitization problem, and I defined ALL >= 0, all the variable large or equal to zero.
I have used 4 methods to do it in a same Maximize Solveblock, but I have got 3 different result.
Look at the pictures below:
the result of (1) and (2) are same and right.
(3) and (4) are different and wrong.
How to explain this puzzle?
No one could help me?
Not sure what you want.
You change the constraint, you change the answer.
I think the meaning of the (1) (2) (3) (4) expressions are same, or I can not find any different between them. So I need help.