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NAME
cabs, cabsf, cabsl - absolute value of a complex number
LIBRARY
Math library (libm, -lm)
SYNOPSIS
bash
#include <complex.h>bash
double cabs(double complex \nz\n);\n
\nfloat cabsf(float complex \nz\n);\n
\nlong double cabsl(long double complex \nz\n);DESCRIPTION
These functions return the absolute value of the complex number z. The result is a real number.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
| Interface | Attribute | Value |
| cabs (), cabsf (), cabsl () | Thread safety | MT-Safe |
STANDARDS
C11, POSIX.1-2008.
HISTORY
glibc 2.1. C99, POSIX.1-2001.
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)