I'd like to amend (extend) a previous post:
To the best of my recollection APL could be written with EBCDIC so why J?
- EBCDIC, to the best of my recollection, supported extended character
sets, sometimes through the use of "code pages". This severe,
vendor-specific, limitation of character representation ("since solved",
say some) was seen by Iverson and others as enough of a reason to try again
with a purely ASCII character set. This requires digraphs in order to have
sufficient tokens to specify a robust array-oriented computational
notation, which is what J is.
On Fri, May 25, 2018 at 6:07 PM, Jose Mario Quintana <
[email protected]> wrote:
> My full reply is in the thread: [Jchat] J, APL, or calendars?
>
> On Thu, May 24, 2018 at 12:48 AM, 'Bo Jacoby' via Chat <[email protected]
> >
> wrote:
>
> > mr Jose Mario Quintana remarks that stopwaches and odometers are 0-origin
> > devices. Today is the 24th day in the 5th month in the 2018th year. The
> > ordinal numbers begin at "first". But a stopwatch would show that 2017
> > years, 4 months and 23 days have passed. Cardinal numbers begin at zero.
> A
> > J index shows how many array elements are skipped. This cardinal number
> is
> > confused with the ordinal number of the element. Centuries, decades,
> years,
> > months and days may be individually adressed by ordinal fractions.
> ORDINAL
> > FRACTIONS - the algebra of data. Thanks. Bo.
> >
> > |
> > |
> > |
> > | | |
> >
> > |
> >
> > |
> > |
> > | |
> > ORDINAL FRACTIONS - the algebra of data
> > This paper was submitted to the 10th World Computer Congress, IFIP 1986
> > conference, but rejected by the referee.... | |
> >
> > |
> >
> > |
> >
> >
> >
> >
> > Den 1:12 torsdag den 24. maj 2018 skrev Jose Mario Quintana <
> > [email protected]>:
> >
> >
> > Forgive me but I find the present situation funny because, taken
> > literally,
> > one should conclude that currently "It is not yet considered ready to be
> > promoted as a complete task, for reasons that" cannot be found.
> >
> > On Wed, May 23, 2018 at 6:48 PM, Raul Miller <[email protected]>
> > wrote:
> >
> > > Indeed: you could create that talk page, if you felt that that was a
> > > good thing. Or, I could. Or anyone else who has registered on that
> > > site could.
> > >
> > > Meanwhile, "draft" means "the task description might change if people
> > > find significant problems with the current description". That does not
> > > seem likely to happen in this case, but it's not like I have never
> > > been wrong...
> > >
> > > Thanks,
> > >
> > > --
> > > Raul
> > >
> > >
> > > On Wed, May 23, 2018 at 6:11 PM, Jose Mario Quintana
> > > <[email protected]> wrote:
> > > >> Speaking of which, we don't yet have a J entry for
> > > >> http://rosettacode.org/wiki/French_Republican_calendar
> > > >
> > > > There is a box on that page stating:
> > > >
> > > > French Republican calendar is a draft programming task. It is not yet
> > > > considered ready to be promoted as a complete task, for reasons that
> > > should
> > > > be found in its talk page.
> > > >
> > > > Hovering on "talk page" the following text pops up:
> > > >
> > > > Talk:French Republican calendar (page does not exist)
> > > >
> > > > :D
> > > >
> > >
> > >
> > ----------------------------------------------------------------------
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> >
> >
> > ----------------------------------------------------------------------
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> >
> ----------------------------------------------------------------------
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>
--
Devon McCormick, CFA
Quantitative Consultant
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