v?Abs

Developer Reference for Intel® oneAPI Math Kernel Library for C

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ID 766684

Date 6/24/2024

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v?Abs

Computes absolute value of vector elements.

Syntax

vhAbs( n, a, y );

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

vmhAbs( n, a, y, mode );

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

vsAbs( n, a, y );

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

vmsAbs( n, a, y, mode );

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

vdAbs( n, a, y );

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

vmdAbs( n, a, y, mode );

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

vcAbs( n, a, y );

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

vmcAbs( n, a, y, mode );

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

vzAbs( n, a, y );

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

vmzAbs( n, a, y, mode );

vmzAbsI(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 vhAbs, vmhAbs const float* for vsAbs, vmsAbs const double* for vdAbs, vmdAbs const MKL_Complex8* for vcAbs, vmcAbs const MKL_Complex16* for vzAbs, vmzAbs	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 for possible values and their description.

Output Parameters

Name	Type	Description
y	_Float16* for vhAbs, vmhAbs, vcAbs, vmcAbs float* for vsAbs, vmsAbs, vcAbs, vmcAbs double* for vdAbs, vmdAbs, vzAbs, vmzAbs	Pointer to an array that contains the output vector y.

Name

Type

Description

_Float16* for vhAbs, vmhAbs, vcAbs, vmcAbs

float* for vsAbs, vmsAbs, vcAbs, vmcAbs

double* for vdAbs, vmdAbs, vzAbs, vmzAbs

Pointer to an array that contains the output vector y.

Description

The v?Abs function computes an absolute value of vector elements.

Special Values for Real Function v?Abs(x)
Argument	Result	Exception
+0	+0
-0	+0
+∞	+∞
-∞	+∞
QNAN	QNAN
SNAN	QNAN	INVALID

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

Abs(z) = Hypot(RE(z),IM(z)).

Parent topic: Arithmetic Functions

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Developer Reference for Intel® oneAPI Math Kernel Library for C

v?Abs

Syntax

Include Files

Input Parameters

Output Parameters

Description