Kotlin Program:

Example:

import java.util.Scanner
fun main(args: Array<String>) {
  
  print("Enter N of N X N magic matrix(must be odd number) :")
  val userInput = Scanner(System.`in`)
  var n:Int = userInput.nextInt()
  
  print("Sum of rows|columns|diagonals of $n x $n magic matrix : "+ (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

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