I was exploring the kind of problem lately and ended up with: (,.97 98 99) (,2)}"1 i. 3 3
Left rank never occurred to me. While we're playing with structures, is there a better way to unbox boxes of arrays than the following: (2 2$2)<;._3 i.6 6 ┌─────┬─────┬─────┐ │0 1 │2 3 │ 4 5│ │6 7 │8 9 │10 11│ ├─────┼─────┼─────┤ │12 13│14 15│16 17│ │18 19│20 21│22 23│ ├─────┼─────┼─────┤ │24 25│26 27│28 29│ │30 31│32 33│34 35│ └─────┴─────┴─────┘ > ,.&.>/ ,&.>/ (2 2$2)<;._3 i.6 6 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 maybe a tesselation inverse? On Sat, Dec 23, 2017 at 12:52 PM, Henry Rich <henryhr...@gmail.com> wrote: > To modify acolumn: > > 97 98 99 (2})"0 1 i. 3 3 > > 0 1 97 > > 3 4 98 > > 6 7 99 > > > Henry Ric > h > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm