]&.#: does not reconstitute negative integers
i:2
_2 _1 0 1 2
]&.#: i: 2
2 3 0 1 2
However, with a little work, an invertible operation
can be achieved:
#.@(#:,.~0<.*)i:2
_2 _1 0 1 2
This becomes important when investigating operations
on binary numbers. For example, shift right:
(,. #.@(}:"1)@(#:,.~0<.*))i:3
_3 _2
_2 _1
_1 _1
0 0
1 0
2 1
3 1
FYI,
--
Raul
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