v?Asinh

Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

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ID 766686

Date 10/15/2026

Version

Public

v?Asinh

vsAsinh vdAsinh vcAsinh vzAsinh vmsAsinh vmdAsinh vmcAsinh vmzAsinh Computes inverse hyperbolic sine of vector elements.

Syntax

call vsasinh(n, a, y)
call vsasinhi(n, a, inca, y, incy)
call vmsasinh(n, a, y, mode)
call vmsasinhi(n, a, inca, y, incy, mode)
call vdasinh(n, a, y)
call vdasinhi(n, a, inca, y, incy)
call vmdasinh(n, a, y, mode)
call vmdasinhi(n, a, inca, y, incy, mode)
call vcasinh(n, a, y)
call vcasinhi(n, a, inca, y, incy)
call vmcasinh(n, a, y, mode)
call vmcasinhi(n, a, inca, y, incy, mode)
call vzasinh(n, a, y)
call vzasinhi(n, a, inca, y, incy)
call vmzasinh(n, a, y, mode)
call vmzasinhi(n, a, inca, y, incy, mode)

Include Files

mkl_vml.f90

Input Parameters

Name	Type	Description
`n`		Specifies the number of elements to be calculated.
`a`	Fortran 77: DOUBLE PRECISION for `vdasinh` , `vmdasinh`Fortran 77: COMPLEX for `vcasinh` , `vmcasinh`Fortran 77: DOUBLE COMPLEX for `vzasinh` , `vmzasinh`Fortran 90: REAL , INTENT(IN) for `vsasinh` , `vmsasinh`Fortran 90: DOUBLE PRECISION , INTENT(IN) for `vdasinh` , `vmdasinh`Fortran 90: COMPLEX , INTENT(IN) for `vcasinh` , `vmcasinh`Fortran 90: DOUBLE COMPLEX , INTENT(IN) for `vzasinh` , `vmzasinh`	Array that specifies the input vector `a` .
`inca` , `incy`	INTEGER, INTENT(IN)	Specifies increments for the elements of `a` and `y` .
`mode`	INTEGER(KIND=8) , INTENT(IN)	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`	Fortran 77: DOUBLE PRECISION for `vdasinh` , `vmdasinh`Fortran 77: COMPLEX for `vcasinh` , `vmcasinh`Fortran 77: DOUBLE COMPLEX for `vzasinh` , `vmzasinh`Fortran 90: REAL , INTENT(OUT) for `vsasinh` , `vmsasinh`Fortran 90: DOUBLE PRECISION , INTENT(OUT) for `vdasinh` , `vmdasinh`Fortran 90: COMPLEX , INTENT(OUT) for `vcasinh` , `vmcasinh`Fortran 90: DOUBLE COMPLEX , INTENT(OUT) for `vzasinh` , `vmzasinh`	Array that specifies the output vector `y` .

Description

The v?Asinh function computes inverse hyperbolic sine of vector elements.

Special Values for Real Function v?Asinh(x)

Argument	Result	Exception
+0	+0
-0	-0
∞	∞
∞	∞
QNAN	QNAN
SNAN	QNAN	INVALID

See Special Value Notations for the conventions used in the table below.

Special Values for Complex Function v?Asinh(z)

RE(z) i · IM(z)	∞	-X	-0	+0	+X	∞	NAN
+i · ∞	∞ +i · `π` /4	∞ +i · `π` /2	∞ +i · `π` /2	∞ +i · `π` /2	∞ +i · `π` /2	∞ +i · `π` /4	∞ +i · QNAN
+i · Y	∞ +i · 0					∞ +i · 0	QNAN+i · QNAN
+i · 0	∞ +i · 0		+0+i · 0	+0+i · 0		∞ +i · 0	QNAN+i · QNAN
-i · 0	∞ -i · 0		-0-i · 0	+0-i · 0		∞ -i · 0	QNAN-i · QNAN
-i · Y	∞ -i · 0					∞ -i · 0	QNAN+i · QNAN
-i · ∞	∞ -i · `π` /4	∞ -i · `π` /2	∞ -i · `π` /2	∞ -i · `π` /2	∞ -i · `π` /2	∞ -i · `π` /4	∞ +i · QNAN
+i · NAN	∞ +i · QNAN	QNAN+i · QNAN	QNAN+i · QNAN	QNAN+i · QNAN	QNAN+i · QNAN	∞ +i · QNAN	QNAN+i · QNAN

Notes:

raises INVALID exception when real or imaginary part of the argument is SNAN
Asinh(CONJ(z))=CONJ(Asinh(z))
Asinh(-z)=-Asinh(z) .

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Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

v?Asinh

Syntax

Include Files

Input Parameters

Output Parameters

Description