Hello, Why does the following raises a length error: ((#~.) ~: #) 1 2 3 4 1
Why isn't it like: (# ~. 1 2 3 4 1) ~: (# 1 2 3 4 1) Goal: to check if there a duplicates in an array.. Thanks, Yoel ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
