NAME: intrsect PURPOSE: Find the intersection or its inverse between two arrays. DESCRIPTION: CATEGORY: Set Manipulation CALLING SEQUENCE: intrsect,a,b,c,nfound, [NNOT] INPUTS: a - First set. b - Second set. OPTIONAL INPUT PARAMETERS: KEYWORD INPUT PARAMETERS: NNOT - Flag, if true will invert the intersection operations, that is, the entries that do NOT appear in both sets will be returned. OUTPUTS: c - Intersection (or NOT) of sets A and B. nfound - Number of items in the intersectoin (or NOT). KEYWORD OUTPUT PARAMETERS: COMMON BLOCKS: SIDE EFFECTS: RESTRICTIONS: PROCEDURE: MODIFICATION HISTORY: 93/12/16 - Marc W. Buie, Lowell Observatory, original version.