cabsl (3)

NAME

cabs, cabsf, cabsl - absolute value of a complex number

SYNOPSIS

#include <complex.h>
double cabs(double complex z);
 
float cabsf(float complex z);
 
long double cabsl(long double complex z);
Link with -lm.

DESCRIPTION

These functions return the absolute value of the complex number z. The result is a real number.

VERSIONS

These functions first appeared in glibc in version 2.1.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).
Interface Attribute Value
cabs (), cabsf (), cabsl () Thread safety MT-Safe

CONFORMING TO

C99, POSIX.1-2001, POSIX.1-2008.

NOTES

The function is actually an alias for hypot(a, b) (or, equivalently, sqrt(a*a + b*b)).

SEE ALSO

abs(3), cimag(3), hypot(3), complex(7)

Information

Source
Linux kernel
OS/version
Source updated
April 19, 2015
Page created
February 9, 2018
Page generated
December 2, 2018