This rings a bell ... I think this might have been a problem with an early beta, forget which version. Later correspondence shows you’re in release beta 901-a, so likely to have been buggy, perhaps.
Cheers, Mike Sent from my iPad > On 14 Sep 2021, at 14:59, Jon Quant <quanty....@gmail.com> wrote: > > Dear all, > > I have tried the following code and get unexpected results and wanted your > seasoned advice. > > kk=.i.5 > kk > 0 1 2 3 4 > kk=.>:kk > kk > 1 2 3 4 5 > i.5 > 1 2 3 4 5 > kk=.>:kk > i.5 > 2 3 4 5 6 > > So this modifies the behaviour of the 'i.' verb! Is there a (functional > programming) grammar rule that says we must not modify a variable/noun > which is also in the expression? > > Thanks > Jon > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
