casinh, casinhf, casinhl

Article
06/05/2017

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Retrieves the inverse hyperbolic sine of a complex number, with branch cuts outside the interval [−i, +i] along the imaginary axis.

Syntax

_Dcomplex casinh(   
   _Dcomplex z   
);  
_Fcomplex casinh(   
   _Fcomplex z   
);  // C++ only  
_Lcomplex casinh(   
   _Lcomplex z   
);  // C++ only  
_Fcomplex casinhf(   
   _Fcomplex z   
);  
_Lcomplex casinhl(   
   _Lcomplex z   
);

Parameters

z
A complex number that represents an angle, in radians.

Return Value

The inverse hyperbolic sine of z, in radians. The result is unbound along the real axis, and in the interval [−iπ/2, +iπ/2] along the imaginary axis.

Remarks

Because C++ allows overloading, you can call overloads of casinh that take and return _Fcomplex and _Lcomplex values. In a C program, casinh always takes and returns a _Dcomplex value.

Requirements

Routine	C header	C++ header
`casinh`, `casinhf`, `casinhl`	<complex.h>	<ccomplex>

For more compatibility information, see Compatibility in the Introduction.

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