Thanks to all! I've selected the following workaround:
a=: 1 : 0 : '`self realu'=. u if. 1 < # y do. x self (}. y) else. x realu y end. ) v=: v`+ a Test: 7 v 1 2 3 10 -- Best regards Igor ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
