Update RHS in C API

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HengTzu Lee

2022年05月09日 09:43

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Hi I would like to update contraint's RHS several time with the same model.

I found ways to update RHS with Python and C#

but I don't find anything in C.

Can anyone help me, thank you!

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  Simranjit Kaur

  • Gurobi Staff

  2025年11月16日 23:37

  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09日 12:03

  You can use the GRBsetdblattrelement function to change the RHS of a particular constraint.

  error = GRBsetdblattrelement(model, "RHS", 0, 10);
  if (error) goto QUIT;

  The above would change the RHS of 0th constraint to \(10\).

  You can also change the RHS of multiple constraints at once with the GRBsetdblattrarray function.

  Best regards, 
  Jaromił

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