Yes... I've been using it, but nothing I use it for has been time critical. And, it took me quite some time to internalize enough of the documentation to be able to reach for it. (And there's some features, like the early termination stuff, which I haven't memorized and don't tend to reach for.)
(One mnemonic which I have been using is that ]F.: is roughly the same as / which lines up with the top of that .:) (But, I also often morn the concise presentation of Ken's dictionary, and that we haven't maintained that conciseness for nuvoc.) That said, if our concern is cognitive load, and the barriers to adoption imposed by cognitive load, I think that that would argue for consistency with other parts of the language as a priority. Thanks, -- Raul On Wed, Dec 13, 2023 at 1:40 PM Henry Rich <[email protected]> wrote: > > Hardly anybody uses Fold, so we really don't know what extensions it > might need. > > What's the first index in y for which (f y) is true? > > 1 i.~ f y > > is pretty easy, though not so hot if 100000000=#y and the first > occurrence is at index 5. That would be a good job for Fold,. When we > see enough use of it for people to ask for improvements, it will be time > to consider them. > > The fact that no one has asked for a faster implementation of Fold > testifies to its disuse. > > Henry Rich > > On 12/13/2023 1:31 PM, Raul Miller wrote: > > Actually, thinking about this (while waiting for feedback), this would > > be an extension to Fold. > > > > So I guess another question would be: what other sort of extension > > would be more valuable than something we've already decided on? > > > > No rush for answers here, I guess. > > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
