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// sample definition for MatLab

What the code could have been:

// Define a class to mimic MatLab functionality
class MatLab {
  /**
   * Constructor to initialize the MatLab object
   * @param {number} a First operand
   * @param {number} b Second operand
   */
  constructor(a, b) {
    // Store the operands in instance variables
    this.a = a;
    this.b = b;
  }

  /**
   * Method to add two numbers
   * @returns {number} The sum of a and b
   */
  add() {
    // Use JavaScript's built-in addition operator
    return this.a + this.b;
  }

  /**
   * Method to subtract two numbers
   * @returns {number} The difference of a and b
   */
  subtract() {
    // Use JavaScript's built-in subtraction operator
    return this.a - this.b;
  }

  /**
   * Method to multiply two numbers
   * @returns {number} The product of a and b
   */
  multiply() {
    // Use JavaScript's built-in multiplication operator
    return this.a * this.b;
  }

  /**
   * Method to divide two numbers
   * @returns {number} The quotient of a and b
   * @throws {Error} If b is zero
   */
  divide() {
    // Check if b is zero to avoid division by zero error
    if (this.b === 0) {
      throw new Error("Cannot divide by zero");
    }
    // Use JavaScript's built-in division operator
    return this.a / this.b;
  }
}

// Example usage:
const matLab = new MatLab(10, 2);
console.log(matLab.add()); // Output: 12
console.log(matLab.subtract()); // Output: 8
console.log(matLab.multiply()); // Output: 20
console.log(matLab.divide()); // Output: 5

// sample definition for MatLab