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The verb u"n applies u to each cell as
specified by the rank n . The full form of the
rank used is 3$&.|.n . For example, if n=:2 ,
the three ranks are 2 2 2 , and
if n=: 2 3, they are 3 2 3 .
A negative rank is complementary: u"(-r) y is equivalent
to u"(0>.(#$y)-r)"_ y .
See also Section II.A Nouns and Section II.B Verbs.
|
(] ; , ; ,"2) y=: a. {~ (a.i.'A') + i. 2 3 4
+----+------------------------+------------+
|ABCD|ABCDEFGHIJKLMNOPQRSTUVWX|ABCDEFGHIJKL|
|EFGH| |MNOPQRSTUVWX|
|IJKL| | |
| | | |
|MNOP| | |
|QRST| | |
|UVWX| | |
+----+------------------------+------------+
(<"0 ; <"1 ; <"2 ; <"3 ,&< <"_1) y NB. Boxing of ranks 0 1 2 3 _1
+---------+----------------+-----------+------+-----------+
|+-+-+-+-+|+----+----+----+|+----+----+|+----+|+----+----+|
||A|B|C|D|||ABCD|EFGH|IJKL|||ABCD|MNOP|||ABCD|||ABCD|MNOP||
|+-+-+-+-+|+----+----+----+||EFGH|QRST|||EFGH|||EFGH|QRST||
||E|F|G|H|||MNOP|QRST|UVWX|||IJKL|UVWX|||IJKL|||IJKL|UVWX||
|+-+-+-+-+|+----+----+----+|+----+----+|| ||+----+----+|
||I|J|K|L|| | ||MNOP|| |
|+-+-+-+-+| | ||QRST|| |
| | | ||UVWX|| |
|+-+-+-+-+| | |+----+| |
||M|N|O|P|| | | | |
|+-+-+-+-+| | | | |
||Q|R|S|T|| | | | |
|+-+-+-+-+| | | | |
||U|V|W|X|| | | | |
|+-+-+-+-+| | | | |
+---------+----------------+-----------+------+-----------+
('*#' ,"0 1 ' abcde') ; (+/"2 i. 2 3 4) ; (+/"_1 i. 2 3 4)
+-------+-----------+-----------+
|* abcde|12 15 18 21|12 15 18 21|
|# abcde|48 51 54 57|48 51 54 57|
+-------+-----------+-----------+
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