Yanbo Fan

Hi Eli Towle, I'm really moved by your careful answers over and over again. I'm lucky to meet such a warm-hearted person as you. After you answer again and again, I finally know the problem. The fo...

Hi Jaromił Najman, Could you help me answer my new question? My question has been posted for a few days, but no one answered it.  Best regards, Yanbo

Hi Eli Towle, Thank you very much for your answer again, but I still have an important problem to solve.  According to the error information, I think the formal parameter qc1 of the function was n...

Hi Eli Towle,    First of all, thank you very much for your detailed answer. But I have the following questions about my problems. 1. About the model. I used this sequential optimization algorithm ...

Hi Jaromił, I'm sorry to trouble you again. I used numericfocus parameter, but the problem of slow solving speed has not been improved. Solver shows parameter numericfocus unchanged.  Is it the wr...

Hi Jaromił, Thank you again for your help. Best regards, Yanbo  

Hi Jaromił,  Thank you very much for your answer. Because of your answer, I already know the reason of the problem. Do I have any other methods besides manual control of the calculation accuracy in...

Hi， Thanks to your help, I have successfully solved the problem. Best regards, Yanbo  

Hi Jaromił,  Thank you for your detailed answer. Thanks to your help, I have successfully solved this problem now.  Best regards, Yanbo

Hi, Thank you for your reply, I was too anxious to cause my problem. My problem has now been successfully solved, the optimal solution is obtained after running for 600 seconds, and the source code...