On Tue, Jul 10, 2012 at 10:16 AM, Rudi Mann <r...@happyplating.eu> wrote: > ]original=. 3 4$'ABCDEFGHIJKL' > ABCD > EFGH > IJKL > > diag original > A > BE > CFI > DGJ > HK > L
As Henry points out, verb/. gets diagonals and hands them off to your verb. However, ]/. original has the wrong orientation. So to resolve that, use |./. original and then reverse each row in the result: diag=:3 :0 |."1 |./. y ) or diag=: [: |."1 |./. -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
