Sung Ook Hwang

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Recent activity by Sung Ook Hwang Recent activity Votes

  • General expression : min_ or max_

    Answered

    Hi,   I wanted to use min_ expression in the rhs of constraint (please see the below expression, schedule[i] is decision variable). model.addConstr(quicksum(100*schedule[i] for i in index) <= 100 -...

    Sung Ook Hwang 3 followers 3 comments 0 votes

  • Constraint Relaxation

    Ongoing

    Hi all,   I am currently building the MILP model and would like to know how to make relaxations (RHS of constraints) if the model becomes infeasible. For example, let's say the model has two differ...

    Sung Ook Hwang 6 followers 11 comments 0 votes

  • logical constraint

    Answered

    Hi, Can we write logical constraints in Gurobi? For example, CPLEX can read below constraints. 1. if then else constraints (x + y >= 1) => z >= 1, (if (x+y) is greater than equal to 1 then z will b...

    Sung Ook Hwang 4 followers 2 comments 2 votes