> => empty table: containing no elements. [[]] looks like a table, but > [] can also be a table.
better is: [[a]] looks like a table, but [b] can also be a table. It all depends on the types of a and b. -- Met vriendelijke groet, @@i = Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
