| NAME | SYNOPSIS | DESCRIPTION | VERSIONS | CONFORMING TO | NOTES | SEE ALSO | COLOPHON | The Linux Programming Interface |
CABS(3) Linux Programmer's Manual CABS(3)
cabs, cabsf, cabsl - absolute value of a complex number
#include <complex.h>
double cabs(double complex z);
float cabsf(float complex z);
long double cabsl(long double complex z);
Link with -lm.
The cabs() function returns the absolute value of the complex number
z. The result is a real number.
These functions first appeared in glibc in version 2.1.
C99.
The function is actually an alias for hypot(a, b) (or, equivalently,
sqrt(a*a + b*b)).
abs(3), cimag(3), hypot(3), complex(7)
This page is part of release 3.51 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/.
2008-08-11 CABS(3)
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