That may be related to a bug reported last year.
[Jprogramming] #: on integer of internal complex type
http://www.jsoftware.com/pipermail/programming/2010-December/021246.html
Чтв, 29 Дек 2011, Devon McCormick писал(а):
> The bug appears to be in residue not correctly handling a complex number
> with an imaginary part of zero:
> 2|1j0 NB. "|" knows that "1j0" is not complex.
> 1
> 2|{. 1 1j1
> _1
> 2|1+ j. 0
> _1
> 1j0 -: 1 + j. 0
> 1
> 2|1j1-0j1
> _1
>
>
> On Thu, Dec 29, 2011 at 4:33 PM, Raul Miller <rauldmil...@gmail.com> wrote:
>
> > This is a bug.
> >
> > That expression is the dictionary definition for residue.
> >
> > --
> > Raul
> >
> > On Thu, Dec 29, 2011 at 1:44 PM, Aai <agroeneveld...@gmail.com> wrote:
> > >
> > >
> > > On 29-12-11 13:33, Raul Miller wrote:
> > >> Note also that this result is inconsistent with the expression from
> > >> the dictionary which appeared in the sentence that I quoted above:
> > >>
> > >> Y=: one
> > >> X=: 2
> > >> Y-X*<. Y % X+0=X
> > >> 1
> > >>
> > > Residue | and the expression are not the same.
> > >
> > > mod=: 13 :'y-x*<. y % x+0=x'
> > >
> > > 8 | 37j37
> > > _3j_3
> > >
> > > not ok
> > > ----------------------------
> > >
> > > 37j37 - (<. 37j37 % 8) * 8
> > > _3j5
> > >
> > > 8 mod 37j37
> > > _3j5
> > >
> > > ok.
> > >
> > > Hence: don't use residue | for complex numbers.
> > >
> > >
> > >
> > > --
> > > Met vriendelijke groet,
> > > @@i = Arie Groeneveld
> > >
> > > ----------------------------------------------------------------------
> > > For information about J forums see http://www.jsoftware.com/forums.htm
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
>
>
>
> --
> Devon McCormick, CFA
> ^me^ at acm.
> org is my
> preferred e-mail
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
--
regards,
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