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Hi David, I thought negative reduced cost indicates that adding the variable would improve the objective value, as many textbooks say. I still do not understand why would the variable have negative...

hi, could you please point out some gurobi-python example of adding columns? also, i am wondering if this approach reoptimizes using the current solution or solves the whole problem from scratch

Thank you!

Hi Simranjit, thanks for your answer. I also want to double-check if my understanding of user-defined cuts and lazy constraints is correct: User cuts: These shrink the search space to explore at a ...

Thank you!

Got it. Thank you for such a clear interpretation!

Thank you Jonasz, I will try it.

This helps indeed. However, I am still wondering if there is any way to terminate early, especially in cases where I know that the current optimal objective is good enough for me. I tried increasin...

Hi Jaromił, Just to clear up my understanding, what is the difference between the block I wrote for the addVars, which is- X = mdl.addVars(((item, element) for item in OD for element in OD[item]), ...

Thanks a ton!!