> From: Bo Jacoby > > Yes, I was surprised that the expression (^~ 3 4 3 5) is a hook, > because it contains only one verb (^~) . >
It is not a hook. The monadic adverb ~ is Reflexive From its dictionary page: http://www.jsoftware.com/help/dictionary/d220v.htm " u~ y ↔ y u y . For example, ^~ 3 is 27, and +/~ i. n is an addition table." ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm