?axpyc
That is, 
. alpha is a multiplication coefficient, and x and y are vectors with a length of n.
Interface Definition
C interface:
void cblas_caxpyc(const BLASINT n, const void *alpha, const void *x, const BLASINT incx, void *y, const BLASINT incy);
void cblas_zaxpyc(const BLASINT n, const void *alpha, const void *x, const BLASINT incx, void *y, const BLASINT incy);
Fortran interface:
CALL CAXPYC(N, ALPHA, X, INCX, Y, INCY)
CALL ZAXPYC(N, ALPHA, X, INCX, Y, INCY)
Parameters
Parameter |
Type |
Description |
Input/Output |
|---|---|---|---|
n |
Integer |
Number of elements in the x vector. |
Input |
alpha |
|
Multiplication coefficient. |
Input |
x |
|
Vector x. The vector size is at least (1+(n-1)*abs(incx)). |
Input |
incx |
Integer |
Increment for the elements of vector x. |
Input |
y |
|
Vector y. The vector size is at least (1+(n-1)*abs(incy)). |
Input/Output |
incy |
Integer |
Increment for the elements of vector y. |
Input |
Dependency
#include "kblas.h"
Examples
C interface:
float alpha[2] = {0.25, 0.5};
int n = 2, incx = 1, incy = 1;
float x[4] = {1.0, 3.0, 5.0, 7.0};
float y[4] = {2.0, 4.0, 6.0, 8.0};
cblas_caxpyc(n, alpha, x, incx, y, incy);
/**
* Output Y: 3.75, 3.75, 10.75, 8.75
*/
REAL(4) :: ALPHA(2)
DATA ALPHA /0.25, 0.5
INTEGER :: N=5
INTEGER :: INCX=1
INTEGER :: INCY=1
REAL(4) :: X(4)
DATA X /1.0, 3.0, 5.0, 7.0/
REAL(4) :: Y(4)
DATA Y /2.0, 4.0, 6.0, 8.0/
CALL CAXPYC(N, ALPHA, X, INCX, Y, INCY)
* Output Y : 3.75, 3.75, 10.75, 8.75