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1answer
87 views

Constraint to state the relation between 2 binary variables

I'm trying to deal with a process planning and machine layout allocation simultaneously. I have the following variables: $X_p{_w}_{cj}=1$ if an operation $p$ is done by a machine $w$ with a ...
16
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2answers
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Can we replace a binary variable with a continuous variable using a quadratic equality constraint?

Is it possible to replace a binary variable $x$ with a continuous variable that satisfies the quadratic equality constraint $x^2 - x=0$? The function $f(x) = x^2 -x$ is not a convex function. Can ...