29.7 IntersectionBlist

IntersectionBlist( blist1, blist2.. )
IntersectionBlist( list )

In the first form IntersectionBlist returns the intersection of the boolean lists blist1, blist2, etc., which must have equal length. The intersection is a new boolean list such that inter[i] = blist1[i] and blist2[i] and ...

In the second form list must be a list of boolean lists blist1, blist2, etc., which must have equal length, and IntersectionBlist returns the intersection of those boolean lists.

    gap> blist1 := [ true, true, false, false ];;
    gap> blist2 := [ true, false, true, false ];;
    gap> IntersectionBlist( blist1, blist2 );
    [ true, false, false, false ] 

Note that IntersectionBlist is implemented in terms of the procedure IntersectBlist (see IntersectBlist).

Previous Up Top Next
Index