Rounds the input to the next highest integer.
For example, if the input is 3.1, the result is 4. If the input is -3.1, the result is -3.
An input to this operation.
This input supports scalar numbers, arrays or clusters of numbers, and arrays of clusters of numbers.
The resulting highest integer, closest to the input.
When x is of the form x = a + bi, that is, when x is complex, the function returns a complex number defined by the next highest integers to the real and imaginary parts of x. The following equation defines rounded number:
ceil(x) = ceil(a) + i ceil(b)