+`* is a noun, its first (zeroth) item is + Втр, 31 Авг 2010, R.E. Boss писал(а): > Remarkable with / or `:3 is the order of insertion. > In http://www.jsoftware.com/help/dictionary/d612.htm it is illustrated that > (+`*/ 1 2 3 4 5) -: (1+2*3+4*5) > But what about +`*/ 2 3 4 5 ? > I would have thought it to result in 46, being 2*3+4*5 , insertion being > done from the right side, right-to-left being the predominant direction. > However > > +`*/2 3 4 5 > 29 > > is equal to > > 2+3*4+5 > 29 > > so insertion is done starting at the left side! > As is shown, btw, in http://www.jsoftware.com/help/dictionary/d420.htm > > > R.E. Boss > > > > -----Oorspronkelijk bericht----- > > Van: [email protected] [mailto:programming- > > [email protected]] Namens Steven Taylor > > Verzonden: dinsdag 31 augustus 2010 12:45 > > Aan: [email protected] > > Onderwerp: Re: [Jprogramming] Why `3: > > > > Bo wrote: > > > I wonder why the 'insert' / is replaced with > > > 'evoke gerund' `3: > > > > Roger responded: > > > Because that is how it's represented internally. > > > You may not think that that is a good reason > > > but it's the immediate reason. > > > > Raul followed-up: > > > The alternative is more concise. > > Dan Observed: > > >I personally enjoy these little corners where the interpreter reveals its > > > secrets. > > > You can learn a lot about J from such hints. And, by extension, about > > > programming language design. > > > > thanks for pointing that out Dan. I got to the thread late, read your > > post, > > and found myself looking at evoke gerund with more appreciation. > > > > http://www.jsoftware.com/help/dictionary/d612.htm > > > > What that said to me many J expressions could be gerrunds. My > > first impression was that all expressions could be a series of gerrunds... > > but that quickly fell down when I got to scan \ > > > > It's a nice approach though for the J interpreter. > > > > -Steven > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm
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