| Not | -. 0 _ _ | Less |
|
-.y is 1-y ; for a boolean argument
it is the complement (not); for a probability, it is the complementary
probability.
|
x-.y includes all items of x except for those
that are cells of y . Tolerance t is provided by -.!.t . |
(i. 9) -. 2 3 5 7
0 1 4 6 8
'abcdefghij' -. 'aeiou'
bcdfghj
]m=: i. 4 5
0 1 2 3 4
5 6 7 8 9
10 11 12 13 14
15 16 17 18 19
m -. 5 6 7 8 9
0 1 2 3 4
10 11 12 13 14
15 16 17 18 19
b=: <\ 'abcdefg'
b
+-+--+---+----+-----+------+-------+
|a|ab|abc|abcd|abcde|abcdef|abcdefg|
+-+--+---+----+-----+------+-------+
b -. 'abc';'abcde';'cba'
+-+--+----+------+-------+
|a|ab|abcd|abcdef|abcdefg|
+-+--+----+------+-------+
2 3 4 5 -. 'abcdef'
2 3 4 5