Modeling – Gurobi Help Center

Mathematical questions around optimization model formulations

Warning: At least one constraint uses '==' instead of '=' as sense Answered
Millend Roy February 27, 2023 16:03

0 votes 1 comment
Quadratic equality constraints Python Answered
Nan D February 27, 2023 10:34

0 votes 3 comments
model for shift scheduling Answered
niccc February 27, 2023 08:59

0 votes 4 comments
Select a Gurobi variable from a set of items Answered
Saeid Ghafouri February 26, 2023 19:53

0 votes 4 comments
How to define that m successive variables should be the same Answered
Huib Meulenbelt February 25, 2023 11:38 Edited

0 votes 5 comments
Error in solving a model with two decision variables Answered
Mohammad Humyun Fuad Rahman February 24, 2023 15:45 Edited

0 votes 4 comments
Inefficient solving of QIP Awaiting user input
Marius Kulassek February 23, 2023 17:03

1 vote 1 comment
KeyError(3,3) when running objective function Answered
Lasse Killingmo February 22, 2023 14:35

0 votes 1 comment
after add slot Model is infeasible Awaiting user input
natapat ngamsanlerd February 22, 2023 11:07

0 votes 1 comment
Inventory balance constraints in gurobipy-pandas framewoek Ongoing
Madhushini Narayana Prasad February 22, 2023 10:14

0 votes 3 comments
Using gurobi optimize variable Answered
Ramesh singh February 20, 2023 10:52

0 votes 1 comment
Putting the value of the variables back to the equation to check, but the constraint does not meet. Answered
Yi Ting Lin February 20, 2023 03:16

0 votes 1 comment
Accessing optimization variables during optimization Answered
Daniel Johnson February 17, 2023 18:36 Edited

1 vote 3 comments
Nested quicksum Answered
DR February 17, 2023 12:49

0 votes 3 comments
Facility Layout Problem, non-overlapping rectangles, model appears to be infeasible Answered
Carole De Sloovere February 18, 2023 13:15 Edited

0 votes 5 comments
How to model constraint to send only when facility is open? Answered
Tanmoy Das February 16, 2023 00:09 Edited

0 votes 1 comment
How to add quadratic constraint in conditional indicator constraints Answered
Saeid Ghafouri February 14, 2023 16:17

0 votes 4 comments
Why is the variable free shown in the ilp file even though I've already set the ub/lb or value in the model? Answered
Yi Ting Lin February 14, 2023 13:01

0 votes 4 comments
Dynamical Range Answered
Ilya Tuzhilin February 13, 2023 12:22 Edited

0 votes 1 comment
How to arrange the same task to start at the same time? Answered
Harichai Sae-yong February 12, 2023 12:07

0 votes 18 comments
i dont know why my code is not taking a constraint into account Answered
sujana islam February 11, 2023 14:02

0 votes 1 comment
using shapes in Gurobi Answered
Sayyidshahab Nabavi February 10, 2023 10:53

0 votes 3 comments
Gurobi Python code to print non-binding constraints? Answered
Tanmoy Das February 10, 2023 01:08

0 votes 3 comments
Unable to retrieve attribute 'x' Answered
Seungmin Song February 08, 2023 14:00

0 votes 1 comment
Print all objective function value? Answered
Tanmoy Das February 08, 2023 05:47

1 vote 3 comments
Why Variable is not in model after model.copy() Answered
Runfeng Yu February 07, 2023 13:01

0 votes 4 comments
Form a new variable from the subset of original variable (maximum values) Answered
Luka Herc February 07, 2023 08:57 Edited

0 votes 3 comments
How to model a contiguity constraint? Answered
rs February 05, 2023 23:46 Edited

1 vote 6 comments
Facility Location Example: what do the arguments in select and assign variables creation and if (abs(select[facility].x) > 1e-6) mean? Answered
Ma. Julie Anne Gala February 01, 2023 13:28

0 votes 3 comments
Absolute value modelling Answered
Peter Tawiah-Mensah February 01, 2023 02:59

0 votes 3 comments

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