It doesn't unbox at the end if the selection is not an atom:
(<<1) {:: <"0 i. 3
1
(<<,1) {:: <"0 i. 3
+-+
|1|
+-+
Henry Rich
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of bill lam
> Sent: Sunday, September 16, 2007 12:12 PM
> To: Programming forum
> Subject: Re: [Jprogramming] Vocabulary question concerning {:: - fetch
>
> I also have to trouble to understand dyad {:: for rank-2
> right box argument,
> ]a =. <"0 i. 3 3
> +-+-+-+
> |0|1|2|
> +-+-+-+
> |3|4|5|
> +-+-+-+
> |6|7|8|
> +-+-+-+
> 1{::a
> +-+-+-+
> |3|4|5|
> +-+-+-+
>
> I thought 1{::a would be 3 4 5, any explanation why it is not opened?
>
> Henry Rich wrote:
> > The Dictionary's description of {:: is defective. JfC
> chapter 17 has
> > some details.
> >
> > Henry Rich
> >
> >> -----Original Message-----
> >> From: [EMAIL PROTECTED]
> >> [mailto:[EMAIL PROTECTED] On Behalf Of david alis
> >> Sent: Sunday, September 16, 2007 7:09 AM
> >> To: Programming forum
> >> Subject: [Jprogramming] Vocabulary question concerning {:: - fetch
> >>
> >> The following took me by surprise
> >>
> >> (1{:: 12 1$<1 2 3)-: 1{ 12 1$<1 2 3
> >> 1
> >>
> >> as I have always understood that the following two
> >> expressions stand for the
> >> same thing
> >>> 1{data
> >> 1{::data
> >>
> >> Does the Vocabulary entry for {::
> >> http://www.jsoftware.com/help/dictionary/d523.htm
> >> describe this situation?
> >>
> >> Regards
> >> David
> >>
> ----------------------------------------------------------------------
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> >> http://www.jsoftware.com/forums.htm
> >
> >
> ----------------------------------------------------------------------
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> >
>
>
> --
> regards,
> bill
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
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