Gwyneth Butera

Are you ready to set up a Burrito Game competition between your friends, students, and/or colleagues? This guide will walk you through how to create a new competition and join an existing one in Ch...

Gurobi's 'compute IIS' feature is designed to address the query: "What subset of model constraints is responsible for making the model infeasible?" In this article, we will show how to use this fea...

In the output log (typically gurobi.log), you might see the messageUser MIP start did not produce a new incumbent solutionThis message is printed when Gurobi rejects a provided MIP start. There are...

If the result that Gurobi returns is not one that you expected, the first step is to identify the type of wrong result.Some common situations: Gurobi says the model is infeasible, but you expect it...

A great productivity feature of the whole Python ecosystem is the availability and accessibility of tools such as interactive notebooks and integrated development environments. Three such tools are...

When you want to change the values of Gurobi parameters, you have several options. Setting parametersFrom the Python API You have several options to set parameters in the Python interface.  Here ar...

Please note that starting with version 11.0.2, the Gurobi Interactive Shell has been deprecated. The Gurobi Interactive Shell (gurobi.sh or gurobi.bat) was a set of extensions to the Python shell t...

The Gurobi Command Line Interface plays a number of different roles. It: provides a simple interface for solving a model, can also be used to launch a model on a Compute Server or Gurobi Instant Cl...

There are three primary causes of this error: Trying to add a two-sided constraint Using NumPy scalars on the left-hand side of a constraint Using variables or expressions in if-clauses Trying to a...

The error message "KeyError: 'Missing constraint index'" appears when you try to add a single constraint using the method Model.addConstrs(). This is used for adding multiple constraints to a model...