Forum Discussion
MPVAR mod integer
Hi all,
I'm wondering is it possible to modulo an mpvar. I have a set of mpvars Xs which are binary and I want to have Sum(i in set) Xi mod 2 = 0 (in other words), the sum of the binary variabl...
In a (linear) mixed integer problem formulation you won't be able to use the "mod" operator on decision variables to state the problem. What about introducing an integer variable, say "y", and rewrite your constraint as follows:
y is_integer
forall(i in aSet) x(i) is_binary
sum(i in aSet) x(i) = 2*y