I tried searching the wiki and noticed that there is a "printf" add-on for C-like formatting. Also, I recall that there is something that uses text format specifiers, like '<9.3d>' or such. I know I've used it but cannot find the code or a reference on the J site.
On Thu, Sep 12, 2019 at 12:38 AM Henry Rich <[email protected]> wrote: > I'm puzzled. When you look at > https://code.jsoftware.com/wiki/Vocabulary/quoteco#dyadic , the second > example uses a complex x to control formatting. If you read on in the > detail, you see complex x used repeatedly. > > Do this: go back to that page and read carefully, especially after "More > Information", and especially item 2 under "Numeric y". If you still > think the definition of complex x is unclear, come back & we'll discuss > how to improve it. > > Henry Rich > > On 9/12/2019 12:04 AM, HH PackRat wrote: > > On 9/11/19, Henry Rich <[email protected]> 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 > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > > > --- > This email has been checked for viruses by AVG. > https://www.avg.com > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA Quantitative Consultant ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
