Ryuta Tamura

Hi, The bigM constraint itself is a well-known method that has been used for a long time and is mentioned in some books like this: "Model Building in Mathematical Programming" by H. Paul Williams. ...

Hi Muhammad, For better understanding these constraints, it may be helpful to try assigning an appropriate numerical value. Since \(X_{ij}\) is binary, \(\sum_{i \in I}X_{ij}\) can only take the st...

Hi Roee, As described in this post, addGenConstrIndicator() should support MVar. Therefore, you can write like this: m.addGenConstrIndicator(b, True, y == 0, name=f"indicator_y_zero_b_one") m.addGe...

Hi,You seem to be referring to the RHS attribute for each scenario. print(f'Scenario {i} RHS: ', sa.Model.getConstrByName(sa.Model.ScenNName).RHS) Does it work if you change it to ScenNRHS attribut...

Hi, addGenConstrPow(x, y, a) should accept a=-0.5 as an argument. But there are a few things to note. If the exponent a is negative, the lower bound on x must be strictly positive. If the exponent...

Hi Roee, I don't know if this is the best approach, but here's an idea. First, estimate the upper limit for the variable. The program you have written does not have upper bounds on variables, but i...

Hi Shahrzad, Your question reads as if the audience is familiar with your problem, and your model formulation (but they are not). To get a more accurate answer, we recommend that you provide the de...

Hi Laynufar, To get a more accurate answer, we recommend that you provide the smallest example that can reproduce the error by itself.Please see: Tutorial: Preparing a Minimal Reproducible Example ...

Hi Chenhui, Providing starting solution may lead to different Solution Path. Are these articles helpful?What is a solution path?Is Gurobi deterministic?Additionally, the objective function value of...

Hi, The szb[i] is a new variable. Is this a different from soc[i] ? Also, what is the result value of szb[i] (soc[i]?)  where is_soc_90 is 1? It might be not a problem that the is_soc_90 is set to ...