Bob and Louis, Your ideas are very helpful, too. We seem to need to work around the need for starting with the fill atom. Building on them and my own, another is this. 0j6 1 1 1j2 1 1 1j6 (#0,]) ,a 0 0 0 0 0 0 10 11 12 0 0 13 14 15 0 0 0 0 0 0
Thanks to all, -- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
