fabs(), fabsf()

Compute the absolute value of a double number

Synopsis:

#include <math.h>

double fabs( double x );

float fabsf( float x );

Library:

libm

Description:

These functions compute the absolute value of x.

Returns:

The absolute value of x.

Examples:

#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int main( void )
{
    printf( "%f %f\n", fabs(.5), fabs(-.5) );
    return EXIT_SUCCESS;
}

produces the output:

0.500000 0.500000

Classification:

ANSI

See also:

abs(), labs()