1CABS(3)                    Linux Programmer's Manual                   CABS(3)
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NAME

6       cabs, cabsf, cabsl - absolute value of a complex number
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SYNOPSIS

9       #include <complex.h>
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11       double cabs(double complex z);
12       float cabsf(float complex z);
13       long double cabsl(long double complex z);
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15       Link with -lm.
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DESCRIPTION

18       These functions return the absolute value of the complex number z.  The
19       result is a real number.
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VERSIONS

22       These functions first appeared in glibc in version 2.1.
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ATTRIBUTES

25       For  an  explanation  of  the  terms  used   in   this   section,   see
26       attributes(7).
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28       ┌─────────────────────────┬───────────────┬─────────┐
29       │Interface                │ Attribute     │ Value   │
30       ├─────────────────────────┼───────────────┼─────────┤
31       │cabs(), cabsf(), cabsl() │ Thread safety │ MT-Safe │
32       └─────────────────────────┴───────────────┴─────────┘

CONFORMING TO

34       C99, POSIX.1-2001, POSIX.1-2008.
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NOTES

37       The  function  is  actually an alias for hypot(a, b) (or, equivalently,
38       sqrt(a*a + b*b)).
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SEE ALSO

41       abs(3), cimag(3), hypot(3), complex(7)
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COLOPHON

44       This page is part of release 4.15 of the Linux  man-pages  project.   A
45       description  of  the project, information about reporting bugs, and the
46       latest    version    of    this    page,    can     be     found     at
47       https://www.kernel.org/doc/man-pages/.
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51                                  2015-04-19                           CABS(3)
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