Non-negative variables and -0.0 values

回答済み

Ayesha Farooq

2023年11月08日 20:59

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I am trying to solve a goal programming problem. My deviation variables' (n_l, p_l) values are supposed to be non-negative integers. I even added constraints like

    for l in L:
        m.addConstr(nl[l]>= 0)
        m.addConstr(pl[l]>= 0)

but I still get -0.0 for some of the variable values while 0.0 for others. 

I can see 0.0 is valid but what does -0.0 mean and why the added constraints do not take care of it?

0

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  Marika Karbstein

  • Gurobi Staff

  2023年11月09日 10:49

  Please see this post.

  0

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