infix (&) , infix ∩
Documentation for infix (&) , infix ∩
assembled from the following types:
language documentation Operators
From Operators
(Operators) infix (&) , infix ∩
multi sub infix:<(&)>(**)multi sub infix:<∩>(**)
Returns the intersection of all of its arguments. This creates a new Set that contains only the elements common to all of the arguments if none of the arguments are a Bag, BagHash, Mix or MixHash.
say <a b c> (&) <b c d>; # OUTPUT: «set(b c)»<a b c d> ∩ <b c d e> ∩ <c d e f>; # OUTPUT: «set(c d)»
If any of the arguments are Baggy or Mixy>, the result is a new Bag
(or Mix
) containing the common elements, each weighted by the largest common weight (which is the minimum of the weights of that element over all arguments).
say <a a b c a> (&) bag(<a a b c c>); # OUTPUT: «Bag(a(2), b, c)»
∩
is equivalent to (&)
, at codepoint U+2229 (INTERSECTION).