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.
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 3.74 of the Linux
man-pages project. A
description of the project, information about reporting bugs, and the latest
version of this page, can be found at
http://www.kernel.org/doc/man-pages/.
