CABS(3) |
Linux Programmer's Manual |
CABS(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
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 3.53 of the Linux
man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.