Jaromił Najman

Hi Saeed, You could use the Model.getA() method to get the constraint matrix in \(\texttt{scipy.sparse}\) format. You can then use the scipy transpose method to get the transpose of your \(A\) matr...

Hi Muhamad, It is possible that the optimal solution point is the same but the objective value is different. A trivial example would be an objective with and without a constant. What you should che...

Hi Fabiana, Gurobi's MATLAB API supports quadratic (nonconvex) objectives. Please have a look at the qp.m example and the corresponding documentation. Best regards, Jaromił

This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please creat...

Hi Dai Nam Nguyen, Unfortunately, Gurobi currently does not support automatic Benders decomposition. As an alternative, you might want to have a look at open-source packages such as the SCIP Bender...

Hi Lei, Could you please update to Gurobi version 12 and try again. If you are not able to upgrade to version 12, please try setting the FuncNonlinear parameter to 1. This will tell Gurobi to treat...

Hi Seyedkianoush, a postponed node is a node that Gurobi was not able to solve for whatever reason. It may be that a node is unbounded when it shouldn't or some numerical trouble were encountered. ...

Cann i also model functions such a power or a sigmoid function without using addGenConstrPWL?  Which command would i use for that? With version 11 you can use the addGenConstrPow method to add po...

Hi Dejan, Strangely enough, it doesn't work with addGenConstrExp(). How do I get it to work? Could you please elaborate what exactly does not work? Note that you have to introduce an auxiliary va...

Hi Margi and Happy New Year, This issue is explained in the Knowledge Base article Why doesn't Gurobi support strict inequality constraints like x < a? Best regards, Jaromił