how to formulate a "if- then" with Non-binary variable as condition

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Xinyi Xie

2022年05月03日 17:00

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since addGenConstrIndicator works if its condition is a binary variable. how can we formulate  "if x1+2*x2-x3>=2 then z=1" in this case?

 

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  Simranjit Kaur

  • Gurobi Staff

  2025年11月16日 23:38

  This post is more than three years old. Some information may not be up to date. For current information, please check the Gurobi Documentation or Knowledge Base. If you need more help, please create a new post in the community forum, or try Gurobot, our chatbot interface offering instant, expert-level support.
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  Jaromił Najman

  • Gurobi Staff

  2022年05月04日 07:32 編集済み

  You can define an auxiliary variable \(x = x_1 + 2 x_2 + x_3\) and then follow the instructions in How do I model conditional statements in Gurobi? to model if \(x\geq 2\) then \(z=1\).

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  Xinyi Xie

  2022年05月04日 10:00

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  thank you

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