In this post, we will learn how to find the cube of a number using the C++ Programming language.
When a number is multiplied three times by itself, the product obtained is called the cube of a number. For example: The cube of 2 is 2 x 2 x 2 = 8.
We will calculate the cube of a number using the following approaches:
- Using Standard Method
- Using Function
So, without further ado, let’s begin this tutorial.
C++ Program to Find Cube of a Number
// C++ Program to Find Cube of a Number
#include <iostream>
using namespace std;
int main(){
int n, cube;
// Asking for input
cout << "Enter a number: ";
cin >> n;
// Finding cube
cube = n * n * n;
// Displaying result
cout << "Cube of " << n << " is: " << cube << endl;
return 0;
}
Output
Enter a number: 2
Cube of 2 is: 8
How Does This Program Work ?
int n, cube;
In this program, we have declared two integer data type variables named n and cube.
// Asking for input
cout << "Enter a number: ";
cin >> n;
The input is taken from the user with the help of cin statement. The entered value gets stored in the n named variable.
// Finding cube
cube = n * n * n;
Cube is calculated by multiplying the same number three times.
// Displaying result
cout << "Cube of " << n << " is: " << cube << endl;
The cube of the number calculated above is displayed on the screen using the cout statement.
C Program to Find Cube of a Number Using Function
// C Program to Find Cube of a Number Using Function
#include <iostream>
using namespace std;
int cubeNum(int);
int main(){
int n, cube;
// Asking for input
cout << "Enter a number: ";
cin >> n;
// Calling out function
cube = cubeNum(n);
// Displaying output
cout << "Cube of " << n << " is: " << cube << endl;
return 0;
}
int cubeNum(int x){
return (x * x * x);
}
Output
Enter a number: 3
Cube of 3 is: 27
Conclusion
I hope after going through this post, you understand how to find the cube of a number using the C++ Programming language.
If you have any doubt regarding the program, then contact us in the comment section. We will be delighted to solve your doubts.
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