Don't you mean v instead of u. And even so, that may be the backward stuff that was discussed for a while in the early Fold stages?
On Tue, Dec 6, 2022 at 5:21 PM Raul Miller <rauldmil...@gmail.com> wrote: > You should probably spend a few minutes studying the diagram at > > https://code.jsoftware.com/wiki/Vocabulary/fcap#How_should_I_define_u_and_v.3F > > The short form, however, might be summarized as: > > lfold=: {{ ]F..(u~) }} > rfold=: {{ ]F.:(u~) }} > > I hope this makes sense, > > -- > Raul > > > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
