| Halve | -: 0 _ _ | Match |
-:y is one half of y . For example:-: i. 5 0 0.5 1 1.5 2 |
x -: y yields 1 if its arguments match:
in shapes, boxing, and elements; but using tolerant comparison.
See Equal (=). Matching with a tolerance t can be obtained using the verb -: !. t . |
x=: 0 1 2 3 4 5
,.&.> (] ; -: ; +:@-: ; (%&2) ; (2: %~ ])) x
+-+---+-+---+---+
|0| 0|0| 0| 0|
|1|0.5|1|0.5|0.5|
|2| 1|2| 1| 1|
|3|1.5|3|1.5|1.5|
|4| 2|4| 2| 2|
|5|2.5|5|2.5|2.5|
+-+---+-+---+---+
x = +: -: x
1 1 1 1 1 1
x -: +: -: x
1