({.,#)/. dyad also (#,{.)/. ; special code; see the J 5.04
release notes
(+/%#)/. dyad avoids building argument cells; see the J 6.02
release notes
from http://www.jsoftware.com/help/dictionary/special.htm
r=.1e6 ?@$9
ts '({.,#)/.~r'
0.0036137404 2688
ts '({:,#)/.~r'
0.031601099 28315776
R.E. Boss
> -----Oorspronkelijk bericht-----
> Van: [email protected] [mailto:programming-
> [email protected]] Namens Aai
> Verzonden: zaterdag 10 december 2011 9:47
> Aan: Programming forum
> Onderwerp: Re: [Jprogramming] FW: A simple function
>
>
>
> On 09-12-11 22:47, Raul Miller wrote:
> > [I wrote this earlier and had thought I sent it, but apparently I did
> > not. My apologies if you get two copies of this message.]
> >
> > On Fri, Dec 9, 2011 at 1:43 PM, Aai<[email protected]> wrote:
> >> Well, how about
> >>
> >> r=.1e6 ?@$9
> >> ts '({.,#)/.~r'
> >> 0.007779 1344
> >>
> >> ts '(~.,#)/.~r'
> >> 0.083331 1.46822e7
> > That's not exactly the issue,
> Sorry about that. Totally focused on (f,#)/. ~y.
>
> >
> > It looks like ({.,#)/.~ has special code,
> Saying all (f,#)/. ~y is dragged along in speed because of the special
> code for #/.~y ?
> Perhaps the creators could clarify this issue.
>
> --
> Met vriendelijke groet,
> @@i = Arie Groeneveld
>
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