Type:
ceil: real -> integer
Call syntax:
ceil(aReal)
Description:
ceil returns the minimal integer which is
greater than or equal to the parameter value aReal.
ceil is used for converting
real numbers into integer values.
It can also be applied to integer arguments, which
it returns unmodified.
Example:
> write(ceil(1.2)," ", ceil(1.7))
2 2
> write(ceil(-1.2)," ", ceil(-1.7))
-1 -1
> write(ceil(1.0)," ", ceil(1))
1 1