Runfeng Yu
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Recent activity by Runfeng Yu-
Add additional constraints but the objective decreased in minimize problem
AnsweredRecently, I encountered an issue with Gurobi, which I suspect is related to precision. Here are the details: If I don’t add these additional constraints, Gurobi returns an optimal solution of 1.187...
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Why Variable is not in model after model.copy()
AnsweredI have built a model called m and a linear expression lin_exp with variables x.And I used the function m.copy() to create another model n. Now, I want to modify the objective function of n. I tried...
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Why my Best objective value is greater than the best known?
AnsweredRecently I was solving a quadratic model with Gurobi. According to the log, I found that my best objective function value is 2314681.25, which is equal to the result of a heuristic program I develo...