Documentation for sub infix:<*> assembled from the following pages:

Class: Range §

From Range

(Range) sub infix:<*> §

multi sub infix:<*>(Range:D \r, Real:D \v)
multi sub infix:<*>(Real:D \v, Range:D \r)

Takes an Real and multiply both boundaries of the Range object by that number.

say (1..2) * 2; # OUTPUT: «2..4␤»