how to write a square constraint？

回答済み

w sj

2023年08月05日 16:10

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Hello，when i using python API to establish a model，i can't write the constraint  in gurobi 8.1.

5*（x1^2+x2^2）^0.5<30 

Thank you very much for your answer

関連

• Bilinear

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  Riley Clement

  • Gurobi Staff

  2023年08月06日 02:06

  Hi,

  You can divide both sides of the inequality by 5, then square each side to get an equivalent form.  You can then use

  m.addConstr(x1*x1 + x2*x2 <= 36)

  - Riley

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  w sj

  2023年08月06日 03:00

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  Thanks.This inequality is just a small example I gave to illustrate the problem, and it may not be very appropriate. I successfully wrote this constraint by introducing auxiliary variables .

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