Yizhi ZHEN
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Recent activity by Yizhi ZHEN-
Sorry I make a spelling mistake, the corrected should be if x!=0: y=x^-0.5; if x==0: y=0 where x is a non-negative integer. Thanks. Best regards
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Hi, Thanks for your reply. But the error " KeyError: (0, 1, <gurobi.Var i_d_1>, 10, 1) " still shown up when the code as below is performed: model.addConstr(x[i, t, i_d[m], t_prime, m] <= z[i, m], ...