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  at‐
26       tributes(7).
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28       ┌────────────────────────────────────────────┬───────────────┬─────────┐
29       │Interface                                   │ Attribute     │ Value   │
30       ├────────────────────────────────────────────┼───────────────┼─────────┤
31       │cabs(), cabsf(), cabsl()                    │ Thread safety │ MT-Safe │
32       └────────────────────────────────────────────┴───────────────┴─────────┘
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CONFORMING TO

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

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

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

45       This page is part of release 5.13 of the Linux  man-pages  project.   A
46       description  of  the project, information about reporting bugs, and the
47       latest    version    of    this    page,    can     be     found     at
48       https://www.kernel.org/doc/man-pages/.
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52                                  2021-03-22                           CABS(3)
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