Hi everyone! I’m a new Julia user. I am using Julia 1.2 and JuMP v0.20.0 for some optimization problems. I have a constrained nonlinear optimization and I would like to define a nonlinear objective function composed by two parts: one is a sum of vector components (each multiplied by a different c…

You cannot use > in a sum like this. To model this properly, you will need to add binary variables, transforming your problem into a mixed-integer nonlinear program (i.e., very hard to solve), and you won’t be able to use Ipopt. Are you sure you want to have a hard 0-1 jump? A slightly relaxed appr…

Problem in @NLobjective

Specific Domains Optimization (Mathematical)

GiuliaM January 13, 2020, 10:22am 3

thank you very much for the answer! I used the sigmoid and it works!
I’m sorry for posting the screenshot, next time I’ll text my code following the ten points shown in the post!
Thanks again!

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Problem in @NLobjective

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