intersection
intersection — constructs a list of all the elements found in
both of two lists.
Syntax
intersection (listA, listB)
Returns
All elements which appear in both listA and listB.
Description
This function generates a new list which contains all of
the elements that appear in both
listA and
listB. The elements are compared
using eq. The order of the elements in the resulting list
is not defined.
Example
Gamma> A = list(#a,#b,#c);
(a b c)
Gamma> B = list(#b,#c,#d);
(b c d)
Gamma> intersection(A,B);
(b c)
Gamma>
