Gurobi selected a very small value (4.3e-16) for a binary decision variable!!

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Siavash Kazemi

2024年05月15日 12:17

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Gurobi selected a very small value (4.3e-16) for a binary decision variable, even though I had already set the variable as binary. Why does it happen, and how can I enforce these variables to only take values of zero and one?

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  Riley Clement

  • Gurobi Staff

  2024年05月15日 12:55

  Hi Siavash,

  Please see the following article:
  
  https://support.gurobi.com/hc/en-us/articles/360012237872-Why-does-Gurobi-sometimes-return-non-integral-values-for-integer-variables

  - Riley

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