In
(+:@]^:[ 1:) 5
The ] gives the value 1 and the [ gives the value 5.
There are other contexts where they can give the same value ([@]0
being an example of that), but I don't think we're talking about that
here?
Thanks,
--
Raul
On Tue, Aug 7, 2018 at 5:54 PM Martin Kreuzer <[email protected]> wrote:
>
> Martin -
>
> Good to see you back once in a while :)
>
> Have been brooding over this for quite some time.
>
> Using (1:) seems like cheating, but ... (as you pointed out) there
> are benefits.
>
> I'm still puzzled by the use of (]) and ([) at the same time for the
> same argument (I remember Raul giving me some treatment on that
> subject some years ago).
>
> Anyway, I think this thread has produced enough information to enable
> me to put some example on the wiki ... (will hopefully get around to
> it next weekend).
>
> Thanks for the discussion, and all the best.
>
> -M
>
>
> At 2018-08-07 18:00, you wrote:
>
> >Hi Martin!
> >
> > > (+:^:(]`(%~))) 5
> > >32
> > > (+:^:(]`*)) 5
> > >32
> >
> >The good old Constant function 1: will give you the benefits of
> >less circumlocution, better results for non-positive arguments,
> >and coverage of array arguments:
> >
> > +:^:(]`1:) (,: -) 0 1 2 5
> > 1 2 4 32
> > 1 0.5 0.25 0.03125
> >
> >A nice puzzle, BTW. I was only capable to get to
> >
> > (+:@]^:[ 1:) 5
> > 32
> >
> >on my own, ignorant of the gerund option.
> >
> > Martin (the other one)
> >----------------------------------------------------------------------
> >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
