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   casinh    ( 3 )

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Имя (Name)

casinh, casinhf, casinhl - complex arc sine hyperbolic

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Синопсис (Synopsis)

#include <complex.h>

       double complex casinh(double complex z);
       float complex casinhf(float complex z);
       long double complex casinhl(long double complex z);

       Link with -lm.

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Описание (Description)

These functions calculate the complex arc hyperbolic sine of z.
       If y = casinh(z), then z = csinh(y).  The imaginary part of y is
       chosen in the interval [-pi/2,pi/2].

       One has:

           casinh(z) = clog(z + csqrt(z * z + 1))

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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   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │casinh(), casinhf(), casinhl()        │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

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Стандарты (Conforming to)

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

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Смотри также (See also)

asinh(3), cabs(3), cimag(3), csinh(3), complex(7)

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