CEIL Section: Linux Programmer's Manual (3) Updated: June 6, 2025 Index   NAME ceil - smallest integral value not less than x   SYNOPSIS #include <math.h> double ceil (double x);   DESCRIPTION The ceil() function rounds x upwards to the nearest integer, returning that value as a double.   CONFORMING TO SVID 3, POSIX, BSD 4.3, ISO 9899   SEE ALSO   Index NAME SYNOPSIS DESCRIPTION CONFORMING TO SEE ALSO This document was created by using the manual pages. Time: 11:58:02 GMT, March 24, 2025