I get a domain error when I try your code, not a nonce error. Looking closer at it, I can't quite figure out how your approach is supposed to work.
Dyadic ". parses numbers (and the v argument to F.. is used dyadically to combine items of y (and for Dyadic F... to combine with the value of x)). It looks like your definitions expect to be doing something different. FYI, -- Raul On Sat, Dec 4, 2021 at 5:18 PM Brian Schott <[email protected]> wrote: > > I am working on advent of code day 2 part 2 and I have the following error. > I am very new to the idea of using Fold so I don’t know whether this error > is due to Fold not being implemented in the iOS version 9 or whether — the > more likely situation — I am using Fold incorrectly. > > [SPOILER] below is code that you may not want to see. > > data =. 0 :0 > forward 5 > down 5 > forward 8 > up 3 > down 8 > forward 2 > ) > data > forward 5 > down 5 > forward 8 > up 3 > down 8 > forward 2 > > 0 0 0 [ F.. ".~ ];._2 data > not found: > /private/var/mobile/Containers/Data/Application/B6ABA026-7944-4523-A908-AE8C3E7C96F0/Documents/j/addons/dev/fold/foldr.ijs > |nonce error > | 0 0 0[ F..".~];._2 data > > > > > -- > (B=) <-----my sig > Brian Schott > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
