While ?. produces different results for J32 vs J64.
Regardless of platforms and cpu architectures and J version, ?. always
gives identical results for all J32.
same result for all J64 . In the J engine test suite
(IF64{::'89551d61c612f81fb7553a355bf932d2d8f78ed7';'6ebe83e54f37c4cdb3cfb617e657af9dd2074c42')
-: (128!:6) ": ?.#~1e6
(IF64{::'ac92c5ac4e7c167de5967296ff90791ea334c39b';'ab5ae709e6f9eb15e197a4cd616a3dd044f31a99')
-: (128!:6) ": ?.~1e6
BTW the statistical quality of randomness of ?. is poor but that is
unimportant. The intention is that it always gives repeatable results.
On Thu, May 11, 2023 at 5:05 AM Raul Miller <rauldmil...@gmail.com> wrote:
> I think the issue you are talking about here is the result from (?.)
>
> It would be plausibly nice if ?. had a definition which is
> architecture and version independent. But that has not been the case
> and probably will not be the case. Already, there's too many variants
> out there for broad compatibility.
>
> It might be best to replace (?.) with (?) so that people who
> understand the difference are not misled into false expectations.
>
> Thanks,
>
> --
> Raul
>
> On Wed, May 10, 2023 at 1:59 PM Brian Schott <schott.br...@gmail.com>
> wrote:
> >
> > Inspired by the wikipedia links offered below, I sought
> > https://en.wikipedia.org/wiki/J_(programming_language) and was quite
> > pleased with the description. However, the random list and array examples
> > produce different results for me and I suspect those examples need to be
> > changed.
> >
> > Below is an excerpt from my jconsole showing the values I see.
> > I would be happy to try to edit the wiki page but I am not registered, so
> > it would be better if someone else does so.
> >
> > avg=: +/ % #
> > ]v=: ?. 20 $100
> > 94 56 8 6 85 48 66 96 76 59 33 72 63 1 89 52 17 20 9 65
> > avg v
> > 50.75
> > 4 avg\ v
> > 41 38.75 36.75 51.25 73.75 71.5 74.25 66 60 56.75 42.25 56.25 51.25 39.75
> > 44.5 24.5 27.75
> > ]m=: ?. 4 5 $50
> > 44 6 8 6 35
> > 48 16 46 26 9
> > 33 22 13 1 39
> > 2 17 20 9 15
> > avg"1 m
> > 19.8 29 21.6 12.6
> > JVERSION
> > Engine: j903/j64/darwin
> > Release-b: commercial/2022-01-28T04:11:24
> > Library: 9.03.08
> > Platform: Darwin 64
> > Installer: J903 install
> > InstallPath: /users/brian/j903
> > Contact: www.jsoftware.com
> >
> >
> > On Wed, May 10, 2023 at 3:10 PM Jose Mario Quintana <
> > jose.mario.quint...@gmail.com> wrote:
> >
> > > > I know of at least A,B,C,D,E,I,J,K,M,Q,R, and S
> > >
> > > F (programming language) - Wikipedia
> > > https://en.wikipedia.org/wiki/F_%28programming_language%29
> > >
> > > P (programming language) - Wikipedia
> > > https://en.wikipedia.org/wiki/P_(programming_language)
> > >
> > > T (programming language) - Wikipedia
> > > https://en.wikipedia.org/wiki/T_(programming_language)
> > >
> > >
> > >
> > > --
> > (B=) <-----my sig
> > Brian Schott
> > ----------------------------------------------------------------------
> > 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
