Beginner Exercism • javascript

Difference Of Squares

Challenge Overview

Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.

Source: Exercism javascript/difference-of-squares

💡 View Solution

export class Squares {
  constructor(n) {
    this.n = n;
    this.sumOfSquares = n * (n + 1) * (2 * n + 1) / 6;
    this.squareOfSum = Math.pow(n * (n + 1) / 2, 2);
    this.difference = this.squareOfSum - this.sumOfSquares;
  }
}