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Command: fabs | Section: 3 | Source: OpenBSD | File: fabs.3
FABS(3) FreeBSD Library Functions Manual FABS(3)
NAME
fabs, fabsf, fabsl - floating-point absolute value functions
SYNOPSIS
#include <math.h>
double
fabs(double x);
float
fabsf(float x);
long double
fabsl(long double x);
DESCRIPTION
The fabs() function computes the absolute value of a floating-point
number x. The fabsf() function is a single precision version of fabs().
The fabsl() function is an extended precision version of fabs().
RETURN VALUES
The fabs(), fabsf() and fabsl() functions return the absolute value of x.
SEE ALSO
abs(3), ceil(3), floor(3), rint(3)
STANDARDS
The fabs() function conforms to ANSI X3.159-1989 ("ANSI C89").
HISTORY
An fabs() function first appeared in Version 6 AT&T UNIX.
FreeBSD 14.1-RELEASE-p8 July 18, 2013 FreeBSD 14.1-RELEASE-p8