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svml128_cos_f?

Interface Definition

C interface:

float32x4_t svml128_cos_f32(float32x4_t src);

float64x2_t svml128_cos_f64(float64x2_t src);

Parameters

Parameter

Type

Description

Input/Output

src

  • For svml128_cos_f32, src is of single-precision floating-point type.
  • For svml128_cos_f64, src is of double-precision floating-point type.

Floating-point value of the input vector.

Input

Return Value

  • The cosine y of radian angle x is returned. y ∈ [-1, +1]
  • If the input is +0, the return value is +1.
  • If the input is -0, the return value is +1.
  • If the input is ±∞, the return value is NaN.
  • If the input is NaN, the return value is NaN.

Dependency

C: "ksvml.h"

Example

C interface:

    float32x4_t src = {0.0f, 2.0f, INFINITY, NAN};
    float32x4_t dst = svml128_cos_f32(src);
    printf("%.15g  %.15g  %.15g  %.15g\n", dst[0], dst[1], dst[2], dst[3]); 
    /**
     *  Output dst:
     *     1  -0.416146836547142  nan  -nan
     *
     */