Yanbo Fan

Hi， Thank you for your careful reply. Now the solution information shows that term1 and term2 can participate in the operation normally. The result of term2 optimization can also correspond to the ...

Hi, Thank you very much for your detailed answer. Through your explanation, I understand why I set MIPGap failed. Through your suggestion, I used model.printQuality() to print out more detailed inf...

Hi, First of all, thank you very much for your reply. Because I just used gueobi, I'm sorry for the trouble I caused you. I am optimizing a problem in which there is only one core decision variable...

Hi Eli Towle, First of all, I'm sorry for the trouble I brought you. I've been looking for the reason why the problem went wrong, but I ignored the problem itself. Thank you very much for your answ...

Hi Eli Towle, When I set the parameter NumericFocus to 2, the above problem can be solved accurately. Maybe it only has some impact on the computational performance.  Best regards, Yanbo

Hi Eli Towle, Okey, I understand your explanation. The last problem, In the calculation, I calculate log (1 + A), A is controlled by the decision variable, and the value of A is bigger than zero an...

Hi Eli Towle, After reading the introduction of tolerance, I think it is the reason why dc * * 4 can not obtain the model solution because it exceeds gurobi or machine accuracy in the calculation p...

Hi Eli Towle,  I'm very moved to see your detailed reply. I'm sorry for the error message I can't describe clearly before. First of all, this is the code that can show my complete error message. Yo...

Hi Eli Towle,  First of all, thank you for your reply. I originally thought it was possible that 0 was in the denominator during the iteration. But, by outputting the dc in each optimization proces...

Hi Eli Towle,  After so many days of your answers again and again, I finally succeeded in solving my problem. I can't imagine how long this problem would bother me without your help. Thank you agai...