INTERSECTALL

Given set of sets, produce all possible intersections for each set or all sets at once.

Simple function INTERSECTALL efficiently returns intersections of given set of sets, computed combinatorially. It returns cell array of vectors of indices of a set that have instersection to any other set and a vector that gives number of intersections for each set. INTERSECTALLSET is much simpler, it returns the values of the set which are members of all sets.