If you dislike parenthetical phrases, you might prefer this form: validate =: #~ -.@:( _&= +. __&= +. 128!:5 )
It has the same meaning as my first suggestion, which was validate =: #~ -.@:((_=])+.(__=])+.(128!:5)) -- T ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
