Developer Reference for Intel® oneAPI Math Kernel Library for C

ID 766684
Date 3/31/2023
Public

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Document Table of Contents

v?Add

Performs element by element addition of vector a and vector b.

Syntax

vsAdd( n, a, b, y );

vsAddI(n, a, inca, b, incb, y, incy);

vmsAdd( n, a, b, y, mode );

vmsAddI(n, a, inca, b, incb, y, incy, mode);

vdAdd( n, a, b, y );

vdAddI(n, a, inca, b, incb, y, incy);

vmdAdd( n, a, b, y, mode );

vmdAddI(n, a, inca, b, incb, y, incy, mode);

vcAdd( n, a, b, y );

vcAddI(n, a, inca, b, incb, y, incy);

vmcAdd( n, a, b, y, mode );

vmcAddI(n, a, inca, b, incb, y, incy, mode);

vzAdd( n, a, b, y );

vzAddI(n, a, inca, b, incb, y, incy);

vmzAdd( n, a, b, y, mode );

vmzAddI(n, a, inca, b, incb, 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, b

const float* for vsAdd, vmsAdd

const double* for vdAdd, vmdAdd

const MKL_Complex8* for vcAdd, vmcAdd

const MKL_Complex16* for vzAdd, vmzAdd

Pointers to arrays that contain the input vectors a and b.

inca, incb, incy

const MKL_INT

Specifies increments for the elements of a, b, 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

float* for vsAdd, vmsAdd

double* for vdAdd, vmdAdd

MKL_Complex8* for vcAdd, vmcAdd

MKL_Complex16* for vzAdd, vmzAdd

Pointer to an array that contains the output vector y.

Description

The v?Add function performs element by element addition of vector a and vector b.

Special values for Real Function v?Add
Argument 1 Argument 2 Result Exception
+0 +0 +0  
+0 -0 +0  
-0 +0 +0  
-0 -0 -0  
+ + +  
+ - QNAN INVALID
- + QNAN INVALID
- - -  
SNAN any value QNAN INVALID
any value SNAN QNAN INVALID
QNAN non-SNAN QNAN  
non-SNAN QNAN QNAN  

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

Add(x1+i*y1,x2+i*y2) = (x1+x2) + i*(y1+y2)

Overflow in a complex function occurs (supported in the HA/LA accuracy modes only) when all RE(x), RE(y), IM(x), IM(y) arguments are finite numbers, but the real or imaginary part of the computed result is so large that it does not fit the target precision. In this case, the function returns in that part of the result, raises the OVERFLOW exception, and sets the VM Error Status to VML_STATUS_OVERFLOW (overriding any possible VML_STATUS_ACCURACYWARNING status).