arrays of positive integers, which need not to be
sorted. Duplicate elements are ignored, as they have no effect on the
result
b
in
required
see a
Examples
a = [2,4,6,8]
b = [6,1,3,2]
inter(a,b) = [ 2, 6] ; Common elements
Version history
Version
$Id: inter.pro 163 2006-08-29 12:59:46Z navarro $
History
http://www.dfanning.com/tips/set_operations.html
Known issues
Restrictions
The empty set is denoted by an array with the first element equal to
-1.
These functions will not be efficient on sparse sets with wide
ranges, as they trade memory for efficiency. The HISTOGRAM function
is used, which creates arrays of size equal to the range of the
resulting set.
