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CABS

Section: Linux Programmer's Manual (3)
Updated: 2008-08-11
Index Return to Main Contents

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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

The cabs() function returns 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.  

CONFORMING TO

C99.  

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)  

COLOPHON

This page is part of release 3.35 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://man7.org/linux/man-pages/.

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Index

NAME

SYNOPSIS

DESCRIPTION

VERSIONS

CONFORMING TO

NOTES

SEE ALSO

COLOPHON

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