.\" Copyright (c) 1991, 1993
.\"	The Regents of the University of California.  All rights reserved.
.\"
.\" %sccs.include.redist.man%
.\"
.\"     @(#)ceil.3	8.1 (Berkeley) 06/04/93
.\"
.Dd 
.Dt CEIL 3
.Os
.Sh NAME
.Nm ceil
.Nd smallest integral value not greater than x
.Sh SYNOPSIS
.Fd #include <math.h>
.Ft double
.Fn ceil "double x"
.Sh DESCRIPTION
The
.Fn ceil
function computes the smallest integral value not less than
.Fa x .
.Sh RETURN VALUES
The
.Fn ceil
function returns the smallest integral value
expressed as a double.
.Sh SEE ALSO
.Xr abs 3 ,
.Xr fabs 3 ,
.Xr floor 3 ,
.Xr rint 3 ,
.Xr ieee 3 ,
.Xr math.3
.Sh STANDARDS
The
.Fn ceil
function conforms to
.St -ansiC .