Modeling – Gurobi Help Center

Mathematical questions around optimization model formulations

Trouble with indexing in Gurobi Answered
Maximilian Sletbakk October 17, 2022 11:10

3 votes 11 comments
When will gurobi perform another presolving? Answered
ce jekl November 02, 2025 07:29

2 votes 2 comments
Best practice for implementing branch and cut algorithm with gurobi
Jannik Irmai May 30, 2024 15:11

2 votes 2 comments
Implement constraints correctly Answered
Marit Solheim Thériautl May 02, 2022 17:36 Edited

2 votes 2 comments
How can I normalize a variable? Answered
Wl MK January 26, 2022 11:56 Edited

2 votes 11 comments
Modeling if constraints with interger variable Answered
Ray TAN November 19, 2020 15:13

2 votes 2 comments
logical constraint Answered
Sung Ook Hwang September 14, 2020 14:53

2 votes 2 comments
Do we need bounds for all newly introduced variables when reformulating nonlinear constraints? Answered
Huan Nguyen April 24, 2026 14:58 Edited

1 vote 6 comments
IISConstrForce=1 not guaranteeing IISConstr=1 in computeIIS output Answered
Hendrik Bierlee April 15, 2026 14:39 Edited

1 vote 5 comments
Question on global optimality certification for nonconvex MIQCP (bilinear terms + binaries) Answered
培松刘 January 14, 2026 07:06 Edited

1 vote 2 comments
Optimality proof for MINLP Answered
Marco Muttoni December 30, 2025 09:15

1 vote 2 comments
Column generation: Proper Aggregating of identical machines
Carl Baier August 22, 2025 05:29

1 vote 0 comments
Piecewise linear approximation for discret non-linear function Answered
Lorenz Wagner August 04, 2025 14:47 Edited

1 vote 1 comment
ILP and LP with integer decision relaxation and Mult objective formulation Answered
ramesh singh April 28, 2025 12:13

1 vote 1 comment
Solving non-convex MINLP and Warning: small or zero constant in general constraint NL "GC0" will be ignored Answered
yunlong Wang December 05, 2024 09:43

1 vote 1 comment
How to retrieve the LP dual variables when a model is infeasible ? Answered
Amet Vikram December 01, 2024 01:58

1 vote 2 comments
Solving multi-dimensional knapsack problems. Answered
Travis Dart November 21, 2024 02:55 Edited

1 vote 1 comment
Passing multiple variables across Python function/methods Answered
Panggah Prabawa August 26, 2024 02:37

1 vote 4 comments
Treating Gurobi as a local solver? Answered
Panggah Prabawa August 09, 2024 08:47

1 vote 7 comments
Questions concering Gap in Output
Dejan Salch June 17, 2024 13:00

1 vote 0 comments
Nonlinear global optimization in pyomo (calling gurobi) Answered
Yingkai Song April 19, 2024 15:21

1 vote 2 comments
How to use gurobi to implement interval variable in cplex.cp Answered
Danellion April 11, 2024 03:33

1 vote 4 comments
Convex vs SOCP Constraint Answered
Panggah Prabawa March 25, 2024 09:32 Edited

1 vote 0 comments
Matrix Invertibility and Some Minimums Answered
Nate MacFadden March 25, 2024 15:06 Edited

1 vote 3 comments
tupledict.prod() with partial dictionary key Answered
Panggah Prabawa March 25, 2024 09:13 Edited

1 vote 6 comments
Creating conditional binary variables Answered
Summer Purschke February 20, 2024 18:57

1 vote 2 comments
How to use gurobi to describe the process of finding the rank of matrix without objective function？ Answered
wenny li February 17, 2024 15:12

1 vote 9 comments
Is abs_() in Gurobi linear or non-linear? Answered
Muhieddine Shebaro February 12, 2024 11:13

1 vote 1 comment
Simplifying the set of constraints of an optimization problem Answered
Paul Pacaud February 15, 2024 14:15 Edited

1 vote 8 comments
Computational complexity of MILP vs MIQP model Answered
Pieter Degeling January 14, 2024 11:19

1 vote 7 comments

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