Addind nested variable bounds

Answered

Birkan Cengiz

May 15, 2023 09:51

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I am programming belowed model.

In this model how can i make the variable bounds.

since it is bounded by variables, i coudnt simply write W(i)U as a ub in W(i)M.

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• Official comment

  

  Simranjit Kaur

  • Gurobi Staff

  November 13, 2026 01:43

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• 

  David Torres Sanchez

  • Gurobi Staff

  May 15, 2023 12:12

  Hi Birkan,

  You can add these separately as standard constraints. As opposed to including them in the variable definition you are trying.

  for i in I:
      model.addConstr(w_u[i] >= w_m[i])
      model.addConstr(w_m[i] >= w_l[i])

  For the strictly greater than 0 bound you can adapt the idea described at: Why doesn't Gurobi support strict inequality constraints like x < a?

  Cheers, 
  David

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