Hi Esa, I think that monadic ; (Raze) is what you are looking for.
]a=.1 3 8;6 9;2 4;5;0;7 ┌─────┬───┬───┬─┬─┬─┐ │1 3 8│6 9│2 4│5│0│7│ └─────┴───┴───┴─┴─┴─┘ ; a 1 3 8 6 9 2 4 5 0 7 Cheers, bob > On Mar 9, 2021, at 20:51, Lippu Esa <esa.li...@varma.fi> wrote: > > ]a=.1 3 8;6 9;2 4;5;0;7 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm