R.E., perhaps your example does not belong to simple J, because you have to know about the effect of rank if you use @ .
(i.2 1) <@:|: i.2 3 (i.2 1) <@|: i.2 3 Hallo R.E. Boss, je schreef op 30-11-11 10:47: > Well, if rank belongs to Simple J, what does not? > > I'm well aware of stating a primitive in terms of other primitives, as Bron > collected in http://www.jsoftware.com/jwiki/PrimitivePrimitives. > > > R.E. Boss > > >> -----Oorspronkelijk bericht----- >> Van: programming-boun...@jsoftware.com [mailto:programming- >> boun...@jsoftware.com] Namens Aai >> Verzonden: woensdag 30 november 2011 9:02 >> Aan: Programming forum >> Onderwerp: Re: [Jprogramming] FW: A simple function >> >> >>> IMO the role of @ is essential and by removing it you amputate J. >>> How would you form trains equivalent to >>> >>> (i.2 1)<@|: i.2 3 >>> +---+-----+ >>> |0 3|0 1 2| >>> |1 4|3 4 5| >>> |2 5| | >>> +---+-----+ >> By using rank? >> >> <@|: b. 0 >> _ 1 _ >> >> (i.2 1) ([:< |:)"1 _ i.2 3 >> ┌───┬─────┐ >> │0 3│0 1 2│ >> │1 4│3 4 5│ >> │2 5│ │ >> └───┴─────┘ >> >> -- >> Met vriendelijke groet, >> @@i=Arie Groeneveld >> >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- Met vriendelijke groet, @@i=Arie Groeneveld ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
