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Raze ;  _ _ _ Link

;y assembles along a leading axis the opened elements of the ravel of y . The fit conjunction (;!.f) provides fill specified by the atom f .
 
  x;y is (<x),y if y is boxed, and (<x),<y if y is open.
 

   ]bv=: 1 2 3;4 5 6;7 8 9
+-----+-----+-----+
|1 2 3|4 5 6|7 8 9|
+-----+-----+-----+

   ;bv
1 2 3 4 5 6 7 8 9

   ]m=: >bv
1 2 3
4 5 6
7 8 9

   ;/ m
+-----+-----+-----+
|1 2 3|4 5 6|7 8 9|
+-----+-----+-----+

   (;/1 2 3 4 5) ,&< (;/i. 3 4)
+-----------+---------------------------+
|+-+-+-+-+-+|+-------+-------+---------+|
||1|2|3|4|5|||0 1 2 3|4 5 6 7|8 9 10 11||
|+-+-+-+-+-+|+-------+-------+---------+|
+-----------+---------------------------+

   ]txt=: '3 %: 4 ^. 5'
3 %: 4 ^. 5
            
   ]s=: ;: txt                 NB. Word formation
+-+--+-+--+-+
|3|%:|4|^.|5|
+-+--+-+--+-+

   ;s
3%:4^.5
            
   (boxifopen=: <^:(< -: {:@;~)) 3 4
+---+
|3 4|
+---+

   (<3 4) = boxifopen <3 4
1



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