> Clearly, a is numeric. How can I change a to a numeric atom 3 , rather
> than a one element list 3 ?
> I need to find where the 3's are in a list. The result of executing some
> expression has produced a one item list of a 3 .
Take the head of it:
({., a) = 2 3 5 3 4
0 1 0 1 0
(even if it is higher-order):
({., 1 1 1 1$3) = 2 3 5 3 4
0 1 0 1 0
Or, adjust the ranks of the verb:
a (="0 _) 2 3 5 3 4
0 1 0 1 0
(1 1 1 1$3) (="0 _) 2 3 4$1 2 3
0 0 1 0
0 1 0 0
1 0 0 1
0 0 1 0
0 1 0 0
1 0 0 1
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