Help / Release / J 4.06 / i. Sparse Arguments
< Help
Jump to navigation
Jump to search
>> << Pri JfC LJ Phr Dic Voc !: Rel NuVoc wd Help Release
i. Sparse Arguments |
initial writing: 2001-02-21 |
The dyad i. now supports sparse arguments, as do verbs based on it:
dyad: | -. e. i: f/. | |
monad: | = ~. ~: |
For example:
v=: 1 3 5 7 9 ] i =: v i. $. i.2 3 0 1 | 0 0 2 | 5 1 0 | 1 1 1 | 5 1 2 | 2 $.^:_1 i 5 0 5 1 5 2 (v i. i.2 3) -: v i. $. i. 2 3 1 ($.i.2 3) e. v 0 1 | 1 0 2 | 0 1 0 | 1 1 1 | 0 1 2 | 1 ] x=: (i.3 4) * ?. 3 4$2 0 1 0 3 0 0 6 7 8 0 10 11 $. x 0 1 | 1 0 3 | 3 1 2 | 6 1 3 | 7 2 0 | 8 2 2 | 10 2 3 | 11 ] i=: v i. $. x 0 1 | 0 0 3 | 1 1 2 | 5 1 3 | 3 2 0 | 5 2 2 | 5 2 3 | 5 $.^:_1 i 5 0 5 1 5 5 5 3 5 5 5 5 (v i. x) -: v i. $. x 1 ] d=: (?.13$8) { (?.8$2) * ?.8 3$10 5 2 0 0 4 6 3 5 8 0 0 0 5 2 0 0 0 0 0 0 0 0 0 0 5 9 8 3 5 8 0 0 0 0 4 6 0 0 0 ] s=: $. d 0 0 | 5 0 1 | 2 1 1 | 4 1 2 | 6 2 0 | 3 2 1 | 5 2 2 | 8 4 0 | 5 4 1 | 2 8 0 | 5 8 1 | 9 8 2 | 8 9 0 | 3 9 1 | 5 9 2 | 8 11 1 | 4 11 2 | 6 s i. 0 0 0 3 s i: 0 0 0 12 s i. 5 9 8 , 0 4 6 ,: 999 0 | 8 1 | 1 2 | 13 s i. s 0 | 0 1 | 1 2 | 2 4 | 0 8 | 8 9 | 2 11 | 1 s i: s 0 | 4 1 | 11 2 | 9 4 | 4 8 | 8 9 | 9 11 | 11 3 $. s i. s 3 3 $. s i: s 12 d i. 0 0 0 3 d i: 0 0 0 12 d i. 5 9 8 , 0 4 6 ,: 999 8 1 13 d i. d 0 1 2 3 0 3 3 3 8 2 3 1 3 d i: d 4 11 9 12 4 12 12 12 8 9 12 11 12