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   cabs    ( 3 )

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Имя (Name)

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

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Синопсис (Synopsis)

#include <complex.h>

       double cabs(double complex z);
       float cabsf(float complex z);
       long double cabsl(long double complex z);

       Link with -lm.

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Описание (Description)

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

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Версии (Versions)

These functions first appeared in glibc in version 2.1.

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Атрибуты (Attributes)

For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             │ Attribute     │ Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │cabs(), cabsf(), cabsl()              │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

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Стандарты (Conforming to)

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

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Примечание (Note)

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

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Смотри также (See also)

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

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