[Jprogramming] Displaying stock market data

[Roger Hui]

http://www.jsoftware.com/help/dictionary/d602.htm
<https://www.jsoftware.com/help/dictionary/d602.htm>  , under the ": entry
of the dictionary.  It's been there since 2005.


On Wed, Sep 11, 2019 at 9:04 PM HH PackRat <hhpackrat at gmail.com> wrote:

> On 9/11/19, Henry Rich <henryhrich at gmail.com> wrote:
> > The definitive documentation of J is NuVoc
> > https://code.jsoftware.com/wiki/NuVoc
> > ": is described in
> https://code.jsoftware.com/wiki/Vocabulary/quoteco#dyadic
> and Chris Burke said essentially the same thing.
>
> I'm very familiar with the  ":  primitive.  It was the  0j4
> construction that I don't recall coming across before for numeric
> formatting.
>
> I would never have thought to look under imaginary numbers in NuVoc to
> find out how to format a numeric result for display (0j4 or 6j2, for
> example).  Besides, the imaginary numbers section in NuVoc doesn't
> deal with numeric display formatting at all.  I also saw it mentioned
> in the "Vocabulary/quoteco" section where it was used but never
> defined.  (Based on context there, my guess is that the first digit
> relates to the digits to display to the left of the decimal point and
> that the second digit relates to the number of digits to display to
> the right of the decimal point.  But where is that definition to be
> found?)  As with imaginary numbers, I would never have thought to look
> under ": to find out about even using 0j4.
>
> So my question still stands:  where do I find the definition of the
> type of numeric formatting such as the 0j4 construction?  How would I
> have found it by searching the wiki if I didn't know the 0j4 type of
> construction in the first place?
>
> Harvey
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