That is pretty neat! As they used to say in the APL implementations is that you do what you find natural and then the implementors find out a way to make it run faster if possible if needed.
2008/9/24 Randy MacDonald <[EMAIL PROTECTED]> > Hello R.E..; > > Given that the comparison machinery of Less(-.) is not really needed, I > submit the following:: > > 3(}.i.)7 > 3 4 5 6 > > Unfortunately it presents the same space usage problems: > > 1000003 (}.i.)1000007 NB. makes two BIG lists and discards most of them. > > > R.E. Boss wrote: > >> Most elegant is >> >> 3 (-.~&i.) 7 >> 3 4 5 6 >> >> Or if you want to include y >> 3 (-.~&i. >:) 7 >> 3 4 5 6 7 >> >> >> R.E. Boss >> >> >> >> -----Oorspronkelijk bericht----- >> Van: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] Namens Geoff Canyon >> Verzonden: maandag 22 september 2008 9:19 >> Aan: Programming forum >> Onderwerp: [Jprogramming] Integers from x to y >> >> Some programming languages have built-in commands that give the integers >> from x to y. I thought that would be a nice thing to have in J, so I wrote >> this: >> >> f =: [+i.@(0&>[EMAIL PROTECTED])~ >> >> Is that a reasonable way to go about it? >> >> regards, >> >> Geoff >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm >> >> >> > > -- > ------------------------------------------------------------------------ > |\/| Randy A MacDonald | APL: If you can say it, it's done.. (ram) > |/\| ramacd <at> nbnet.nb.ca | > |\ | | The only real problem with APL is that > BSc(Math) UNBF'83 | it is "still ahead of its time." > Sapere Aude | - Morten Kromberg > Natural Born APL'er | > -----------------------------------------------------(INTP)----{ gnat }- > > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Björn Helgason, Verkfræðingur Fugl&Fiskur ehf, Þerneyjarsundi 23, Hraunborgum Po Box 127,801 Selfoss , t-póst: [EMAIL PROTECTED] gsm: +3546985532 Landslags og skrúðgarðagerð, gröfuþjónusta http://groups.google.com/group/J-Programming Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans góður kennari getur stigið á tær án þess að glansinn fari af skónum /|_ .-----------------------------------. ,' .\ / | Með léttri lund verður | ,--' _,' | Dagurinn í dag | / / | Enn betri en gærdagurinn | ( -. | `-----------------------------------' | ) | (\_ _/) (`-. '--.) (='.'=) `. )----' (")_(")
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