imagine if you have 5 virables , and you want to set the last 2 either on of them 0 or 1
you could do it, but that depends in what you want for that problem "to be or not to be"
[Inf;Inf;Inf;1;1]; to be % it will force (4) and (5) to be binary by 1 or 0 or [Inf;Inf;Inf;0;0]; or not to be
inf ; means array of infinite ( integers)
hope that at least helps