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FreeBSD 11.0 - man page for nearbyint (freebsd section 3)

RINT(3) 						   BSD Library Functions Manual 						   RINT(3)

NAME
nearbyint, nearbyintf, nearbyintl, rint, rintf, rintl -- round to integral value in floating-point format
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h> double nearbyint(double x); float nearbyintf(float x); long double nearbyintl(long double x); double rint(double x); float rintf(float x); long double rintl(long double x);
DESCRIPTION
The rint(), rintf(), and rintl() functions return the integral value nearest to x according to the prevailing rounding mode. These functions raise an inexact exception when the original argument is not an exact integer. The nearbyint(), nearbyintf(), and nearbyintl() functions perform the same operation, except that they do not raise an inexact exception.
SEE ALSO
abs(3), ceil(3), fabs(3), fenv(3), floor(3), ieee(3), lrint(3), lround(3), math(3), round(3)
STANDARDS
These functions conform to ISO/IEC 9899:1999 (``ISO C99'').
HISTORY
A rint() function appeared in Version 6 AT&T UNIX. The nearbyint() and nearbyintf() functions appeared in FreeBSD 5.3, and the long double variants were first available in FreeBSD 8.0.
BSD
January 13, 2008 BSD
Linus Torvalds

Linus Benedict Torvalds was born on December 28, 1969 and is a Finnish–American software engineer who is the creator of Linux. Linus was also the original principal developer of the Linux kernel. The Linux kernel is the kernel for Linux OS distributions as well as other operating systems such as Android and Chrome OS. Linus also created the distributed version control system called Git.
Linus was introduced to the GNU Project in 1991 after another Swedish-speaking computer science student, Lars Wirzenius, took him to the University of Technology to listen to free software evangelist Richard Stallman's speech. Linus used Richard's GNU General Public License version 2 (GPLv2) and his initial prototypes of Linux were publicly released later that year (1991). Version 1.0 was released on March 14, 1994.
Linus was honored with the 2012 Millennium Technology Prize by the Technology Academy Finland "in recognition of his creation of a new open source operating system for computers leading to the widely used Linux kernel."
He is also the recipient of the 2014 IEEE Computer Society Computer Pioneer Award and the 2018 IEEE Masaru Ibuka Consumer Electronics Award.
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