Z S
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Latest activity by Z S-
Z S created a post,
How to linearize piecewise nonlinear function?
AnsweredI establish a bi-level optimization model, in the lower-level, the objective function is a piecewise nonlinear function, like y=(x-c)^a, for x>=c. y=-k(c-x)^b, for x<c, a,b,c and k are constant. I ...
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Z S commented,
when i write " model.addGenConstrIndicator(x_k_i[i], True, D_k_i[i] > a, x_k == 1, name=f"constraint_level2_{k}_{i}")" in gurobi, i get a feedback about "gurobipy.GurobiError: Additional sense arg...
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Z S created a post,
How do i model nested conditional constraints in Gurobi?
OngoingIf D_k > a, then x_k=1, otherwise x_k=0. when x_k=1, if D_k(i) > a, then x_k(i) = 1, otherwise x_k(i) = 0. when x_k=1 and x_k(i) = 1, if D_k(ij) > a, then x_k(ij) = 1, otherwise x_k(ij) = 0. I want...