ĵaŭ, 18 Mar 2010, Zsbán Ambrus skribis:
> 2010/3/18 Frederick W Mellem <mell...@frontiernet.net>:
> > i.&.>("0) 4 2 3
> >
> > --------T---T-----┐
> >
> > │0 1 2 3 │0 1 │0 1 2 │
> >
> > L-------+---+------
> >
> > i.&.(>"0) 4 2 3
> >
> > --T-T-T-┐
> >
> > │0 │1 │2 │3 │
> >
> > +-+-+-+-+
> >
> > │0 │1 │ │ │
> >
> > +-+-+-+-+
> >
> > │0 │1│2 │ │
> >
> > L-+-+-+--
>
> > Please explain the scalar boxing. I assume it is correct, but I don't see
> > why >("0) is different from (>"0)
>
> Those two would be exactly the same, but the difference is because
> (i.&.>("0)) is the same as ((i.&.>)"0).
>
> TVhe scalar boxing is because the inverse of (>"0) in J is (<"0) so
> (i.&.(>"0) 4 2 3) is the same as (((<"0)@:i.@:(>"0)"0) 4 2 3) in which
> (<"0) boxes each atom in the output individually.
>
The verbs > and >"0 should be the same but their inverse differs
> b. _1
<
>"0 b. _1
<"0
Not sure if this is a bug or a feature.
--
regards,
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