.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\" May be distributed under the GNU General Public License
.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\" Modified Sat Jul 24 21:27:30 1993 by Rik Faith (faith@cs.unc.edu)
.TH CEIL 3  "June 6, 1993" "" "Linux Programmer's Manual"
.SH NAME
ceil \- smallest integral value not less than x
.SH SYNOPSIS
.nf
.B #include <math.h>
.sp
.BI "double ceil (double " x );
.fi
.SH DESCRIPTION
The \fBceil()\fP function rounds \fIx\fP upwards to the nearest integer,
returning that value as a double.
.SH "CONFORMING TO"
SVID 3, POSIX, BSD 4.3, ISO 9899
.SH SEE ALSO
.BR abs "(3), " fabs "(3), " floor "(3), " labs "(3), " rint (3)