v?invcbrt

Compute the reciprocal of the cube root of the input vector.

Interface Definition

C interface:

void vsinvcbrt(const int len, const float *src, float *dst);

void vdinvcbrt(const int len, const double *src, double *dst);

Parameters

Parameter	Type	Description	Input/Output
len	Integer	Number of elements in the input vector. If len ≤ 0, an invalid parameter error is reported and the function returns.	Input
src	Single-precision floating-point type for vsinvcbrt Double-precision floating-point type for vdinvcbrt	Input vector src with length len. If the pointer is null, a null pointer error is reported and the function returns.	Input
dst	Single-precision floating-point type for vsinvcbrt Double-precision floating-point type for vdinvcbrt	Output vector dst with length len. If the pointer is null, a null pointer error is reported and the function returns.	Output

Parameter

Type

Description

Input/Output

len

Integer

Number of elements in the input vector.

If len ≤ 0, an invalid parameter error is reported and the function returns.

Input

src

Single-precision floating-point type for vsinvcbrt
Double-precision floating-point type for vdinvcbrt

Input vector src with length len.

If the pointer is null, a null pointer error is reported and the function returns.

Input

dst

Single-precision floating-point type for vsinvcbrt
Double-precision floating-point type for vdinvcbrt

Output vector dst with length len.

If the pointer is null, a null pointer error is reported and the function returns.

Output

Return Value

The reciprocal of the cube root of each input value is returned.

Input Value (src)	Output Value (dst)
+0	+inf
-0	-inf
+inf	+0
-inf	-0
nan	nan

Dependencies

C: "kvml.h"

Examples

C interface:

    #define N 4
    const float src[N] = {-8.0f, 125.0f, -INFINITY, +0.0f};
    float dst[N] = {0};

    vsinvcbrt(N, src, dst);
    printFArr("input :", N, src);    
    printFArr("output:", N, dst);
 
    /** 
     *  input :  -8.000  125.000     -inf    0.000 
     *  output:  -0.500    0.200   -0.000      inf
     * 
     */

Parent topic: Function Syntax