doh! +/\4+i.10 4 9 15 22 30 39 49 60 72 85 O f course! I should have seen that. Actually, I thought that a recursive approach would be simpler/more concise, but that doesn't seem to be the case.
Skip Cave Cave Consulting LLC On Thu, Sep 28, 2017 at 8:57 PM, Linda Alvord <[email protected]> wrote: > Or: > f=: 13 :'+/"1(>:/~i.y)*(y#x)+/i.y' > 4 f 7 > 4 9 15 22 30 39 49 > > Linda > > Sent from AOL Mobile Mail > > On Thursday, September 28, 2017 Raul Miller <[email protected]> wrote: > Nothing is simpler than the i. approach, but ^: is not significantly more > complex than $: approach: }:(}:,+/@(_2&{.),>:@{:)^:9]4 4 9 15 22 30 39 49 > 60 72 Thanks, -- Raul > > On Thu, Sep 28, 2017 at 3:37 PM, Xiao-Yong Jin <[email protected]> > wrote: > > >> On Sep 28, 2017, at 1:40 PM, Raul Miller < > [email protected]> wrote: >> >> That is what I would assume: >> >> > 4,(4+5),(4+5+6),(4+5+6+7),(4+5+6+7+8) >> 4 9 15 22 30 >> >> I was trying > to figure out a recursive approach which isn't vastly >> more tedious... > > > 4( [, +( ([,+)`$:@.(10>]) ) >:@])5 > > On the other hand, ^: can be used, > but I don't see any simpler. > >> >> Thanks, >> >> -- >> Raul >> >> >> On > Thu, Sep 28, 2017 at 2:39 PM, Roger Hui <[email protected]> > wrote: >>> You don't mean >>> >>> +/\4+i.10 >>> 4 9 15 22 30 39 49 60 72 85 > >>> >>> do you? >>> >>> >>> >>> On Thu, Sep 28, 2017 at 11:33 AM, Skip Cave > <[email protected]> wrote: >>> >>>> What is a good way to generate > this sequence in J? >>>> >>>> 4,(4+5),(4+5+6),(4+5+6+7),(4+5+6+7+8)+..... > >>>> >>>> Show one way using i. and insert. >>>> >>>> Show another way > using recursion. >>>> >>>> Skip >>>> >>>> Skip Cave >>>> Cave Consulting > LLC >>>> > ---------------------------------------------------------------------- > >>>> For information about J forums see http://www.jsoftware.com/ > forums.htm >>> ------------------------------ > ---------------------------------------- >>> For information about J > forums see http://www.jsoftware.com/forums.htm >> > ---------------------------------------------------------------------- >> > For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
