Evoke that by default lingo assumes nonnegative variables

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Reference no: EM1371382

The purpose of this exercise is to provide practice using the LINGO or Excel solvers. Find the values of X and Y that minimize the function :

Min X^2-4x+y^2+8y+20

Do not assume nonnegativity of the x and y variables. Recall that by default LINGO ASSUMES nonnegative variables. In order to allow the variables to take on negative valuse you can add

@free(x); @Free(y);

Alternatively, if you want LINGO to allow for negative values by default, in the LINGO menu select Options and then click General Solver, and then uncheck the Variables assumed nonegative tab

Reference no: EM1371382

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