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Tan

Computes the tangent of a vector.

The calculation formula is as follows: .

The function interface declaration is as follows:

Operations on floating point numbers:

HmppResult HMPPS_Tan_32f(const float *src, float *dst, int32_t len);

HmppResult HMPPS_Tan_64f(const double *src, double *dst, int32_t len);

Parameters

Parameter

Description

Value Range

Input/Output

src

Pointer to the source vector

The value cannot be NULL.

Input

dst

Pointer to the destination vector

The value cannot be NULL.

Output

len

Vector length

(0, INT_MAX]

Input

Return Value

  • Success: HMPP_STS_NO_ERR
  • Failure: An error code is returned.

Error Codes

Error Code

Description

HMPP_STS_NULL_PTR_ERR

The value of src or dst is NULL.

HMPP_STS_SIZE_ERR

The value of len is less than or equal to 0.

Example

#define BUFFER_SIZE_T 10

void TanExample(void)
{
    float src[BUFFER_SIZE_T] = {4.52, 5.92, 5.16, 6.15, 8.17, 9.93, 6.04, 11.17, 2.79, 3.58};
    float dst[BUFFER_SIZE_T];
    (void)HMPPS_Zero_32f(dst, BUFFER_SIZE_T);
    HmppResult result = HMPPS_Tan_32f(src, dst, BUFFER_SIZE_T);
    printf("result = %d\n", result);
    if (result != HMPP_STS_NO_ERR) {
        return;
    }
    printf("dst =");
    for (int i = 0; i < BUFFER_SIZE_T; i++) {
        printf(" %.2f", dst[i]);
    }
    printf("\n");
}

Output:

result = 0
dst = 5.13 -0.38 -2.08 -0.13 -3.06 0.55 -0.25 -5.67 -0.37 0.47