On Sat, Oct 8, 2011 at 12:19 PM, David Vaughan <purpleblue...@googlemail.com> wrote: > Could you maybe explain how that tacit verb works (and how it works with > 'verb')? Is it something along the lines of, see if the input is not a member > of trigger, multiply with trigger to get 0 0 or outp1 outp2, ... then I run > out of ideas. :P > > On 8 Oct 2011, at 15:58, R.E. Boss wrote: > >> trigger=: outp1, outp2 >> >> verb ^: (trigger */@:-.@e.~ ])^:_ input
outp1=: 2 outp2=: 5 trigger=: outp1, outp2 trigger e.~ 2 3 5 7 1 1 trigger e.~ 1 2 3 4 1 0 trigger e.~ 5 6 7 8 0 1 trigger e.~ 9 10 11 12 0 0 -.1 1 0 0 -.1 0 0 1 -.0 1 1 0 -.0 0 1 1 */0 0 0 */0 1 0 */1 0 0 */1 1 1 So (trigger */@:-.@e.~ ]) is 1 when neither element of trigger is present in its right argument and 0 otherwise. Meanwhile verb does whatever you need it to do (but you have not said what that is yet, so we cannot make any useful suggestions there). FYI, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
