## Java Program:

- To print sum of rows|columns|diagonals of an N x N magic matrix

#### Example:

User Input: 3

Output: 15

``````import java.util.Scanner;
public class SumOfMagicMatrix {
public static void main(String []args) {
int n;
Scanner userInput = new Scanner(System.in);
System.out.print("Enter N of N X N magic matrix(must be odd number) :");
n = userInput.nextInt();

System.out.print("Sum of rows|columns|diagonals of "+n+" x "+n+" magic matrix : ");
System.out.print((n*(n*n+1))/2);
}
}``````

### Output:

```  Enter N of N X N magic matrix(must be odd number) : 5
Sum of rows|columns|diagonals of 5 x 5 magic matrix : 65
```
Program
puzzle

Remember : Magic matrix are always odd value matrix

` like : 3x3,5x5,7x7,.....`

So, you must first check it for an Odd value

``(n*(n*n+1))/2 //Formula to calculate the sum``

To check for odd value

``n%2!=0``
Concept

Coming Soon !

Quick
Tutorial

# Quote

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