I have Julia 1.1.1 and JuMP 0.19. I am solving a concave maximization problem with linear constraints with Ipopt. I am confused with what is happening to the signs of the Lagrange multipliers: The correct multipliers are [0.20964, -0.0655815] [2.39447, 2.21215, 2.64144, 2.58729, -1.37699e-6] wh…

Lagrange multipliers (duals) in JuMP 0.19

odow September 9, 2019, 6:06pm 16

Thanks for your input. I’ve replied to the PR. I believe Miles is on vacation.

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