The dyad n f\x provides infix of size n. Reduction is not automatically provided so if you want reduction you have to specify it explicitly:
2 +/\ 1+i.10 3 5 7 9 11 13 15 17 19 Since reduction is not built in you can apply other functions, such as < (box): 2 <\ 1+i.10 ┌───┬───┬───┬───┬───┬───┬───┬───┬────┐ │1 2│2 3│3 4│4 5│5 6│6 7│7 8│8 9│9 10│ └───┴───┴───┴───┴───┴───┴───┴───┴────┘ On Mon, Oct 27, 2014 at 7:59 PM, Chris Wright <[email protected]> wrote: > in apl (using i. for iota) > > 2+/i.10 > > gives pair wise additions > > 3 5 7 9 11 13 15 17 19 > > but j gives: > > 2 3 4 5 6 7 8 9 10 11 > > is there an n-wise reduction idiom or glyph for j? > > cheers and thanks > > Chris > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
