Jonasz Staszek

Hi Tanvir, maybe changing MIPFocus to 1 could help? Best regardsJonasz

Hi Tanvir, recently Matthias wrote a great note about the MIP Gap. It should be able to clarify most of your questions. Best regardsJonasz

Hi Hussein, the bound could be due to the presolve - Gurobi might have implied it from the other constraints in your model. I recommend that you specify a name for each of your constraints (as desc...

This question has been asked (and answered) here and here. I would recommend you state a more detailed question. You will find an excellent guide here. Otherwise, it is going to be very difficult t...

This question has already been asked here and here.

Dear Ghada, what kind of "thing" are you experiencing? Are the results not what you expected them to be? It would be helpful to also describe what kind of model you are solving and what is the desi...

Dear Johan, I am unable to replicate your issue. I compared the logs and the solutions generated by Gurobi 9.5.2 and 10 and both the presolve statistics and solutions seem identical. Perhaps you co...

Dear Yutong, could you please share a minimal reproducible example of the code which throws the error you mention? Best regardsJonasz

Dear Johan, could you please upload your model to some filesharing service and then share the link here? We will then be able to analyse the model and help you further. Best regardsJonasz

Dear Simon, the reason for the lower bound being set to \( x^L > 0 \) in the case you mention is to avoid  \( x \) assuming the value of \( 0 \). If you also need to include the case of negative va...