查找矢量幅度的程序

给定三个表示X，Y的整数， 和3-D向量的Z坐标，任务是找到该向量的大小。

例子：

Input: X = 1, Y = 2, Z = 2
Output: 3
Explanation: Magnitude of the vector is equal to √9 =3

Input: X = 0, Y = 4, Z = 3
Output: 5

方法：可以通过求解方程√(X ² + Y ² + Z ² )来计算向量的大小。请按照以下步骤解决问题：

• 将X，Y和Z坐标的平方和存储在一个变量中，例如sum。
• 初始化一个变量，例如幅度，以存储和的平方根。
• 打印幅度值作为所需结果。

下面是上述方法的实现：

C++14

// C++ program for the above approach
#include 
using namespace std;
 
// Function to calculate magnitude
// of a 3 dimensional vector
float vectorMagnitude(int x, int y, int z)
{
    // Stores the sum of squares
      // of coordinates of a vector
    int sum = x * x + y * y + z * z;
   
      // Return the magnitude
    return sqrt(sum);
}
 
// Driver Code
int main()
{
    int x = 1;
    int y = 2;
    int z = 3;
   
    cout << vectorMagnitude(x, y, z);
   
    return 0;
}

Java

// Java program for the above approach
class GFG{
     
// Function to calculate magnitude
// of a 3 dimensional vector
private static double vectorMagnitude(int x, int y,
                                      int z)
{
     
    // Stores the sum of squares
    // of coordinates of a vector
    int sum = x * x + y * y + z * z;
 
    // Return the magnitude
    return Math.sqrt(sum);
}
 
// Driver code
public static void main(String[] args)
{
    int x = 1;
    int y = 2;
    int z = 3;
     
    System.out.print(vectorMagnitude(x, y, z));
}
}
 
// This code is contributed by abhinavjain194

Python3

# Python3 program for the above approach
from math import sqrt
 
# Function to calculate magnitude
# of a 3 dimensional vector
def vectorMagnitude(x, y, z):
     
    # Stores the sum of squares
    # of coordinates of a vector
    sum = x * x + y * y + z * z
     
    # Return the magnitude
    return sqrt(sum)
         
# Driver code   
x = 1
y = 2
z = 3
 
print(vectorMagnitude(x, y, z))
 
# This code is contributed by abhinavjain194

C#

// C# program for the above approach
using System;
 
class GFG{
     
// Function to calculate magnitude
// of a 3 dimensional vector
private static double vectorMagnitude(int x, int y,
                                      int z)
{
     
    // Stores the sum of squares
    // of coordinates of a vector
    int sum = x * x + y * y + z * z;
 
    // Return the magnitude
    return Math.Sqrt(sum);
}
 
// Driver code
static void Main()
{
    int x = 1;
    int y = 2;
    int z = 3;
     
    Console.Write(vectorMagnitude(x, y, z));
}
}
 
// This code is contributed by abhinavjain194

输出：

3.74166

时间复杂度： O(1)
辅助空间： O(1)