On 9/11/19, Henry Rich <henryhr...@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 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
