Huan Nguyen
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Huan Nguyenさんがコメントを作成しました:
Thanks for the suggestions. That also answers my question in the other post.
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Huan Nguyenさんがコメントを作成しました:
Thank you very much for the clear answer. Regarding your last sentence:“If you must reformulate the model in this way, the practical recommendation remains: provide tight, valid bounds whenever th...
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Huan Nguyenさんがコメントを作成しました:
Thank you, that clears up my confusion.Here are two small examples that illustrate my observation.Let me describe the key relationship. Suppose we have a constraint of the formr * x^(4/3) = 0.5 * c...
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Huan Nguyenさんが投稿を作成しました:
Do large implied variable ranges in nonlinear terms affect numerical stability, or only explicit coefficients and rhs matter?
I have a question about numerical scaling guidelines in Gurobi.The documentation emphasizes keeping matrix coefficients, RHS values, and bounds within reasonable ranges as shown here. However, I am...
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Huan Nguyenさんが投稿を作成しました:
Is it better to split nonlinear expressions into auxiliary variables or keep them in a single constraint?
回答済みWhen dealing with nonlinear expressions, is it better to keep a single constraint with multiple bilinear and/or quadratic terms, or to introduce auxiliary variables to break it into smaller parts?F...
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Huan Nguyenさんが投稿を作成しました:
Do we need bounds for all newly introduced variables when reformulating nonlinear constraints?
回答済みWhen modeling nonlinear constraints in Gurobi, I introduce new variables to convert them into bilinear or quadratic forms.My question is:Do we need to set lower and upper bounds for all newly intro...