I guess adverbs have only the left argument, no right argument. Therefore, if there is u or m, then both x and y are legal and denote the argument of the resultant. otherwise (neither u and m present), then x become the left argument, but y cannot.
in a clean session, it will raise the same error if args=: 1 : 'v' + arg if assign v some value, such as v=: * then + arg will be ok. compare also the followings args=: 1 : 'u' args=: 1 : 'm' args=: 1 : 'n' args=: 1 : 'x' args=: 1 : 'y' On the contrary, conjunctions can take both x and y as arguments. Вск, 08 Апр 2012, Paul Jackson писал(а): > Indeed, I called it a bug because of the confused name meanings. I don't > believe arguments should change their value based on the sequence in which > I use them. > > Please note, user conjunctions don't appear to suffer from the problem. > > Args=: 2 : 0 > y 1!:3 [2 > u y > : > x 1!:3 [2 > y 1!:3 [2 > x v y > ) > > - Args + 10 > 10 > _10 > > 20 - Args + 10 > 20 > 10 > 30 > > Paul > On Apr 8, 2012 8:54 AM, "Raul Miller" <rauldmil...@gmail.com> wrote: > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- regards, ==================================================== GPG key 1024D/4434BAB3 2008-08-24 gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
