v?Asin

Developer Reference for Intel® oneAPI Math Kernel Library for C

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ID 766684

Date 4/28/2026

Version

Public

v?Asin

vsAsin vdAsin vcAsin vzAsin vmsAsin vmdAsin vmcAsin vmzAsin Computes inverse sine of vector elements.

Syntax

vhAsin ( n , a , y ) ;

vhAsinI(n, a, inca, y, incy);

vmhAsin ( n , a , y , mode ) ;

vmhAsinI(n, a, inca, y, incy, mode);

vsAsin ( n , a , y ) ;

vsAsinI(n, a, inca, y, incy);

vmsAsin ( n , a , y , mode ) ;

vmsAsinI(n, a, inca, y, incy, mode);

vdAsin ( n , a , y ) ;

vdAsinI(n, a, inca, y, incy);

vmdAsin ( n , a , y , mode ) ;

vmdAsinI(n, a, inca, y, incy, mode);

vcAsin ( n , a , y ) ;

vcAsinI(n, a, inca, y, incy);

vmcAsin ( n , a , y , mode ) ;

vmcAsinI(n, a, inca, y, incy, mode);

vzAsin ( n , a , y ) ;

vzAsinI(n, a, inca, y, incy);

vmzAsin ( n , a , y , mode ) ;

vmzAsinI(n, a, inca, y, incy, mode);

Include Files

mkl.h

Input Parameters

Name	Type	Description
`n`	const MKL_INT	Specifies the number of elements to be calculated.
`a`	const _Float16* for `vhAsin` , `vmhAsin` const float* for `vsAsin` , `vmsAsin` const double* for `vdAsin` , `vmdAsin` const MKL_Complex8* for `vcAsin` , `vmcAsin` const MKL_Complex16* for `vzAsin` , `vmzAsin`	Pointer to an array that contains the input vector `a` .
`inca` , `incy`	const MKL_INT	Specifies increments for the elements of `a` and `y` .
`mode`	const MKL_INT64	Overrides global VM mode setting for this function call. See vmlSetMode (Sets a new mode for VM functions according to the mode parameter and stores the previous VM mode to oldmode.) for possible values and their description.

Output Parameters

Name	Type	Description
`y`	_Float16* for `vhAsin` , `vmhAsin` float* for `vsAsin` , `vmsAsin` double* for `vdAsin` , `vmdAsin` MKL_Complex8* for `vcAsin` , `vmcAsin` MKL_Complex16* for `vzAsin` , `vmzAsin`	Pointer to an array that contains the output vector `y` .

Description

The v?Asin function computes inverse sine of vector elements.

Special Values for Real Function v?Asin(x)

Argument	Result	VM Error Status	Exception
+0	+0
-0	-0
+1	`π` /2
-1	`π` /2
`\(\|X\| > 1\)`	QNAN	VML_STATUS_ERRDOM	INVALID
∞	QNAN	VML_STATUS_ERRDOM	INVALID
∞	QNAN	VML_STATUS_ERRDOM	INVALID
QNAN	QNAN
SNAN	QNAN		INVALID

Specifications for special values of the complex functions are defined according to the following formula

Asin(z) = -i*Asinh(i*z) .

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Developer Reference for Intel® oneAPI Math Kernel Library for C

v?Asin

Syntax

Include Files

Input Parameters

Output Parameters

Description