CABS(3) Linux Programmer's Manual CABS(3)

NAME
       cabs, cabsf, cabsl - absolute value of a complex number

SYNOPSIS
       #include 

       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.

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.

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/.



                                  2008-08-11                           CABS(3)