I see, so

   0 1 e. i.2 2
1


On Thu, Nov 20, 2014 at 1:27 PM, Roger Hui <rogerhui.can...@gmail.com>
wrote:

> Both expressions give the correct answer.
>
> The right argument of membership determines the target of the items to be
> sought, just like the left argument of index-of determines the targets.  In
> my opinion, the APL\360 team made a mistake by making x∊y the same as
> x∊,y.  We are struggling with the consequences of this in Dyalog APL, where
> ⍳ was recently extended to accept higher-ranked left arguments.  The
> mistake from long-ago prevents the similar extension to ∊.
>
>
>
>
> On Thu, Nov 20, 2014 at 10:19 AM, Devon McCormick <devon...@gmail.com>
> wrote:
>
> > Hi -
> >
> > I was just burned by this apparent anomaly:
> >    1 e. 0~: i. 2 2
> > 0
> >
> > but
> >    1 e. , 0~: i. 2 2
> > 1
> >
> > Has anyone else noticed this?  Am I right in thinking this is incorrect
> > behavior in the first case?
> >
> > Regards,
> >
> > Devon
> > --
> > Devon McCormick, CFA
> > ----------------------------------------------------------------------
> > 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
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm

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