| Ceiling | >. 0 0 0 | Larger Of (Max) |
>.y gives the ceiling of y , that is,
the smallest integer greater than or equal to y . Thus:>. 4.6 4 _4 _4.6 5 4 _4 _4The implied comparison with integers is tolerant, as discussed under Equal (=), and is controlled by >.!.t . See Floor (<.) and McDonnell [10] for complex arguments. |
x>.y is the larger of x and y .
For example:
3>.4 _4
4 3
>./7 8 5 9 2
9
>./\7 8 5 9 2
7 8 8 9 9
|
Integer_test=: ] = >. See the definition of fork in Section II F. Integer_test 3 3.14 _5 1 0 1 f=: = >. The same function may be defined by a hook. f 3 3.14 _5 1 0 1The ceiling >. y is equivalent to -<.-y . In other words, it is the dual of floor with respect to (that is, under) arithmetic negation: >. « <.&.- and <. « >.&.- . For example:
(<.&.- ; >.) 4.6 4 _4 _4.6 +---------+---------+ |5 4 _4 _4|5 4 _4 _4| +---------+---------+