veuler

Perform operations on real-number vectors using the Euler formula.

The function interface declaration is as follows:

Operations on numbers of the float type:

void (vsip_veuler_f)(const vsip_vview_f *a, const vsip_cvview_f *r);

Parameters

Parameter	Description	Value Range	Input/Output
a	Pointer to the source vector	The value cannot be NULL.	Input
r	Pointer to the destination complex vector	The value cannot be NULL.	Output

Abnormal Input

When a null pointer is input, the function directly returns a result.

Example

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include "kvsip.h"
#include "vsip.h"
#include "vsip_type.h"

#define BUFFER_SIZE_T 10
void VeulerExample()
{
    float src[BUFFER_SIZE_T / 2] = {1.64f, 1.63f, -1.09f, 0.71f, -3.20f};
    float dst[BUFFER_SIZE_T];
    int64_t cvLen = BUFFER_SIZE_T / 2;
    int64_t stride = 1;
    uint64_t offset = 0;

    vsip_block_f *block_a = vsip_blockbind_f(src, cvLen, VSIP_MEM_NONE);
    vsip_cblock_f *block_r = vsip_cblockbind_f(dst, NULL, cvLen, VSIP_MEM_NONE);

    vsip_vview_f *a = vsip_vbind_f(block_a, offset, stride, BUFFER_SIZE_T);
    vsip_blockadmit_f(block_a, VSIP_TRUE);
    vsip_cvview_f *r = vsip_cvbind_f(block_r, offset, stride, cvLen);
    vsip_cblockadmit_f(block_r, VSIP_TRUE);

    vsip_veuler_f(a, r);

    vsip_valldestroy_f(a);
    vsip_cvalldestroy_f(r);

    printf("src:\n");
    for (int32_t i = 0; i < cvLen; ++i) {
        printf("%.2f    ", src[i]);
    }
    printf("\ndst:\n");
    for (int32_t i = 0; i < cvLen; ++i) {
        printf("%.2f ", dst[i * 2]);
        printf("%.2f    ", dst[i * 2 + 1]);
    }
    printf("\n");
}

int main(void) {
    VeulerExample();
    return 0;
}

Output:

src:
1.64    1.63    -1.09    0.71    -3.20
dst:
-0.07 1.00    -0.06 1.00    0.46 -0.89    0.76 0.65    -1.00 0.06

Parent topic: Vector Operation Functions