> During my trials, I had it locked in my head that '[: is a suicide verb... > so how do I force a verb to be monadic'.
Steven, If this was a question, note the last part of the Dictionary listing for Explicit Definition: The definitions of the monadic and dyadic cases produced by 3 : 0 are separated by a colon on a line by itself; if none occurs, the domain of the dyadic case is empty. As an example: squareroot=: 3 : '%:y' squareroot 2 1.41421 4 squareroot 2 |domain error: squareroot | 4 squareroot 2 Tracy ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
