Older J doesn't exhibit the problem :

XX Shearing

(<0 0)}&(4 4$1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1)

JVERSION

Engine: j807/j64/windows

Release-c: commercial/2019-02-24T11:18:30

Library: 8.07.22

Qt IDE: 1.7.9s/5.9.7

Platform: Win 64

Installer: J807 install

InstallPath: c:/program files/j64-807




On Sat, Nov 16, 2019 at 1:50 PM Raul Miller <rauldmil...@gmail.com> wrote:

> I wonder what promoted the booleans 0s in XX=: <0 0  to the integer
> zeros that we see in the definition of Shearing?
>
> This doesn't happen for me on
>
>    JVERSION
> Engine: j901/j64avx2/darwin
> Beta-p: commercial/2019-11-06T09:55:37
> Library: 9.01.13
> Qt IDE: 1.8.4/5.12.5
> Platform: Darwin 64
> Installer: J901 install
> InstallPath: /users/rauldmiller/j901
> Contact: www.jsoftware.com
>
> Thanks,
>
> --
> Raul
>
> On Fri, Nov 15, 2019 at 9:40 PM Henry Rich <henryhr...@gmail.com> wrote:
> >
> > 00 is integer, 0 is boolean.  In the display of a verb the system will
> > use the representation that matches the definition.
> >
> > Henry Rich
> >
> > On 11/15/2019 9:38 PM, David Lambert wrote:
> > > JVERSION
> > > Engine: j901/j64avx2/linux
> > > Beta-m: commercial/2019-10-02T09:16:34
> > > Library: 9.01.08
> > > Platform: Linux 64
> > > Installer: unknown
> > > InstallPath: /usr/share/j/9.01
> > > Contact: www.jsoftware.com
> > >
> > >    [I4 =: =i.4
> > > 1 0 0 0
> > > 0 1 0 0
> > > 0 0 1 0
> > > 0 0 0 1
> > >
> > >   ] XX=:<0 0
> > > ┌───┐
> > > │0 0│
> > > └───┘
> > >
> > >    Shearing =: 1 : 'm}&I4'
> > >
> > >    XX Shearing  NB. <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> > > (<00 0)}&(4 4$1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1)
> > >
> > > ----------------------------------------------------------------------
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> >
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> ----------------------------------------------------------------------
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