Defining an if condition in a constraint

[jacobusmmsmit]

I’m not an experienced JuMP user, but I think you are looking for @NLconstraint.

Here is an example:

Conditional constraint if else in JuMP

This is not a constraint. Do you mean @NLconstraint(model, eq[i in I; x0[i] >= 0], 2y[i]^3 - 1 == x0[i]) which is equivalent to for i in I if x0[i] >= 0 @NLconstraint(model, 2y[i]^3 - 1 == x0[i]) end end