v?hypot

Compute the square root of the sum of the squares of src1 and src2. src1, src2, and the result are all vectors.

Interface Definition

C interface:

void vshypot(const int len, const float* src1, const float* src2, float* dst);

void vdhypot(const int len, const double* src1, const double* src2, double* dst);

Parameters

Parameter	Type	Description	Input/Output
len	Integer	Number of elements in the input vector. If len ≤ 0, the system displays a message indicating that the value of len is invalid.	Input
src1	Single-precision floating-point type for vshypot Double-precision floating-point type for vdhypot	Input vector src1 with length len. If the pointer is null, the system prompts a null pointer error.	Input
src2	Single-precision floating-point type for vshypot Double-precision floating-point type for vdhypot	Input vector src2 with length len. If the pointer is null, the system prompts a null pointer error.	Input
dst	Single-precision floating-point type for vshypot Double-precision floating-point type for vdhypot	Output vector dst with length len. If the pointer is null, the system prompts a null pointer error.	Output

Return Value

The value of

is returned. The value range is |(–inf, inf)|.

Input Value 1 (src1)	Input Value 2 (src2)	Output Value (dst)
snan	any	nan
any	snan	nan
±inf	!=snan	inf
!=snan	±inf	inf
qnan	(-inf, inf)	nan
(-inf, inf)	qnan	nan
$\text{[math]}$		inf

Dependency

C: "kvml.h"

Examples

C interface:

    #define N 4
    const float src1[N] = {3.0f, 5.0f, 8.44f, NAN};
    const float src2[N] = {-4.0f, 12.0f, -INFINITY, 1.0f};
    float dst[N] = {0};

    vshypot(N, src1, src2, dst);
    printFArr("input1:", N, src1);
    printFArr("input2:", N, src2);
    printFArr("output:", N, dst);
 
    /** 
     *  input1:   3.000    5.000    8.440      nan 
     *  input2:  -4.000   12.000     -inf    1.000
     *  output:   5.000   13.000      inf      nan
     */

Parent topic: Function Syntax