Quadratic problems with large number of variables

[Saeed Poormoaied]

Hi everybody,

I do not know how to add constraint in large size. I have an example attached. I don’t know what qrow[0], qcol[0], and qval[0]. Could anyone please explain in general example what is  qrow[0], qcol[0]….?

For example how to write x^2 + y*x + z^2 + x*z ? how to write this constraint by qrow, qcol…?

Thanks in advance

[Tobias Achterberg]

The reference manual at
http://www.gurobi.com/documentation/6.5/refman/c_grbaddqconstr.html gives an
example in the description of the "qrow" argument and also in the example usage.
Does this suffice to help you?


Tobias