This is a comment on the FAQ Does perl have a round function? What about ceil() and floor()? Trig functions?. See also vroom's How do I round a floating point number?

An effective way to "ceil" if you don't have a perl version capable of "ceil" (such as a specialized small Windows distro), you can effectively "ceil" this way: $ceiled_number = int( $float + 0.99999999 );