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Constant Functions _9: to 9:  _ _ _

The results are _9 and _8 and _7 and so on to 9 .
 

For example:
   x=: 1 2 3 [ y=: 4 5 6
   2: y
2

   x 9: y
9
The rank conjunction " applies to any noun to make a constant function of specified rank. The particular constant functions illustrated above are therefore special cases of the form i"_ . For example:
   2"_ y
2
             
   2"0 y
2 2 2

   2"1 i. 2 3 4
2 2 2
2 2 2

   2p1"0 y
6.28319 6.28319 6.28319

   1p1 1p_1 1x1"0 y           NB. A constant function with a vector result
3.14159 0.3183099 2.71828
3.14159 0.3183099 2.71828
3.14159 0.3183099 2.71828

   0 0 0"1 y                  NB. The zero vector in a space of three dimensions
0 0 0

   a=:'abcdefghijklmnopqrstuvwxyz'"_
   A=:'ABCDEFGHIJKLMNOPQRSTUVWXYZ'"_ 
   s=: ' '"_

   f=: { a
   f 5 8 6
fig

   g=: { a,:A
   g 1 5;0 8;0 6
Fig
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