Birkan Cengiz

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Activity overview

Latest activity by Birkan Cengiz
  • Birkan Cengiz created a post,

    Addind nested variable bounds

    Answered

    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.

  • Birkan Cengiz commented,

    Hi Maliheh, i have problem. The thing that i missed was the last constraint which is How can i add this one to the constarints. I tried to make them boundries in the variable declaration but i got...

  • Birkan Cengiz commented,

    Hi Maliheh, The model worked as it intended to do. Thank you so much for helping. Best regards.

  • Birkan Cengiz commented,

    Hi Maliheh, Firstly, thanks for your answer, it really helps me. I have an other question. I think i wrote rest of the codes correctly. Here its. import gurobipy as gpfrom gurobipy import GRBmodel ...

  • Birkan Cengiz created a post,

    Model Coding

    Ongoing

    I am really struggling with programming this model in Python. Firstly, objective function with natural logarithms is not acceptable in Gurobi, addGenConstrLog should be used i can understand that ...