i. 2 3 4 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
,/ i. 2 3 4 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 $ ,/ i. 2 3 4 6 4 On Thu, Aug 8, 2019 at 6:00 AM Bill Harris < bill_har...@facilitatedsystems.com> wrote: > This should be easy, but I don't see it. > > a =: i. 2 3 4 > > I want the f in ab =: f a where $ ab is 6 4. > > f =: |: @: (,"2 &.(0 1&|:)) seems to work , and f f. doesn't simplify it, > but I keep thinking I'm missing a way to drop the leftmost |: . > > Ideas? > > Bill > -- > Bill Harris > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm