CABS, CABSF, CABSL - reference manual online

Absolute value of a complex number.

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 These functions return 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.
ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌─────────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├─────────────────────────┼───────────────┼─────────┤ │cabs(), cabsf(), cabsl() │ Thread safety │ MT-Safe │ └─────────────────────────┴───────────────┴─────────┘
CONFORMING TO C99, POSIX.1-2001, POSIX.1-2008.
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 4.04 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
2015-04-19 CABS(3)
This manual Reference Other manuals
cabs(3) referred by abs(3) | cacosh(3) | carg(3) | casinh(3) | catanh(3) | ccos(3) | ccosh(3) | cexp(3) | cexp2(3) | cimag(3) | clog(3) | clog10(3) | clog2(3) | complex(7) | conj(3) | cpow(3) | cproj(3) | creal(3) | csin(3) | csinh(3)
refer to abs(3) | attributes(7) | cimag(3) | complex(7) | hypot(3)