Modeling – Gurobi Help Center

Mathematical questions around optimization model formulations

Why doesn't objective value improve? Then it acquires enormous value Answered
Antonios Georgantas February 08, 2024 08:08 Edited

0 votes 15 comments
Constraint has no bool value (are you trying "lb <= expr <= ub"?) Answered
Yunus Emre Çakır January 26, 2024 10:32

0 votes 1 comment
Modeling variable multiplication and/or divisions Answered
Krypt January 26, 2024 04:35

0 votes 1 comment
Gurobi providing non-optimal and worse solution that a simple greedy algorithm for MIQCP problem? Awaiting user input
Francesco Raviglione January 25, 2024 18:35

0 votes 2 comments
Simplifying the set of constraints of an optimization problem Answered
Paul Pacaud February 15, 2024 14:15 Edited

1 vote 8 comments
Warning: failed to compute QCP dual solution due to inaccurate barrier solution Answered
Liao Haixiang January 25, 2024 15:59

0 votes 2 comments
How to guarantee unique values for a decision variable among sub-optimal solutions Answered
Matthew Hall January 23, 2024 05:06

0 votes 2 comments
"Optimization Performance Issues with Gurobi Solver in URBS Framework: Stuck at 'Waiting for Other Threads to Finish' Ongoing
Giovanni Savoriti January 22, 2024 18:05 Edited

0 votes 4 comments
The same LP-relaxation and root node relaxation Awaiting user input
Saeedeh Ahmadi Basir January 22, 2024 08:47

0 votes 4 comments
Objective Q not PSD (diagonal adjustment of 1.8e-06 would be required) Answered
Jacob Jin January 16, 2024 15:41 Edited

0 votes 1 comment
Gurobi- Free Variable Ongoing
Muhammad Arslan Shahid January 15, 2024 07:45 Edited

0 votes 3 comments
Computational complexity of MILP vs MIQP model Answered
Pieter Degeling January 14, 2024 11:19

1 vote 7 comments
Enforce binary variable to zero when the sum is negative Awaiting user input
Assia Kamal-idrissi January 10, 2024 14:43 Edited

0 votes 5 comments
Gurobipy - Model.addVars() Answered
Emma Innocente January 10, 2024 10:58

0 votes 13 comments
How to set the priority of certain types of decision variables in Gurobi Awaiting user input
Ariel W January 09, 2024 05:40

0 votes 3 comments
Hierarchical multi-objective optimization Answered
Arun Datta Beeravelli January 08, 2024 13:05 Edited

0 votes 6 comments
Fixed route delivery inventory calculation Answered
Pim van Velzen January 02, 2024 16:26

0 votes 1 comment
Questions about conditional statements in gurobi Answered
Kewei Fan December 28, 2023 08:03

0 votes 2 comments
Conditional stament in Gurobi Answered
Nick Fryganiotis December 27, 2023 16:02

0 votes 3 comments
Questions about conditional statements in gurobi Answered
Kewei Fan December 26, 2023 11:47

0 votes 3 comments
Model becomes infeasible after relaxation Answered
Laaziz Lahlou December 21, 2023 17:31

0 votes 13 comments
Cannot find the optimal solution for linear programming problem Answered
Rabbitutu Yang December 19, 2023 10:50

0 votes 2 comments
Comparing the efficiency when using two VRP formulations for practical applications Answered
Wei Wang December 18, 2023 05:35

0 votes 2 comments
SOS constraints in Gurobi with Julia Answered
Albert John Crosby December 17, 2023 04:25

0 votes 8 comments
Constraint Modelling Answered
Salma Dessouki December 16, 2023 03:38

0 votes 1 comment
0 on lp file objective function Answered
Iason Liagkas December 14, 2023 09:46

0 votes 4 comments
Gurobi C++ expr sum Answered
ALESSANDRA VIEIRA December 11, 2023 23:40 Edited

0 votes 3 comments
Modifying the capacity constraints in multiple scenarios Answered
Yuri Pessoa December 11, 2023 14:54

0 votes 1 comment
Is there a advantage converting == constraint to <= and >= Answered
Sudheer Reddy December 11, 2023 10:00

0 votes 1 comment
Help with building a model
Georgi Georgiev December 10, 2023 19:23

0 votes 0 comments

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