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svml128_log10_f?

Compute the logarithm of the input vector to base 10.

Interface Definition

C interface:

float32x4_t svml128_log10_f32(float32x4_t src);

float64x2_t svml128_log10_f64(float64x2_t src);

Parameters

Parameter

Type

Description

Input/Output

src

  • For svml128_log10_f32, src is of single-precision floating-point type.
  • For svml128_log10_f64, src is of double-precision floating-point type.

Floating-point value of the input vector

Input

Return Value

  • The base-10 logarithm y of x is returned. y ∈ (-INF, +INF).
  • If the input x is ±0, the return value is -∞.
  • If the input x is 1, the return value is 0.
  • If the input x is a negative number, the return value is NaN.
  • If the input x is +∞, the return value is +∞.
  • If the input x is NaN, the return value is NaN.

Dependencies

C: "ksvml.h"

Examples

C interface:

    float32x4_t src = {0.0f, 2.0f, INFINITY, NAN};
    float32x4_t dst = svml128_log10_f32(src);
    printf("%.15g  %.15g  %.15g  %.15g\n", dst[0], dst[1], dst[2], dst[3]); 
    /**
     *  Output dst:
     *     -inf  0.301029995663981  inf  -nan
     *
     */