<?php

require 'Calculator.php';

class AdvancedCalculator extends Calculator
{
    public function pow($num1, $num2)
    {
        return $this->saveToMemory('Pow', $num1, $num2, pow($num1, $num2));
    }

    public function root($num1, $num2)
    {
        return $this->saveToMemory('Root', $num1, $num2, $this->rootFn($num1, $num2));
    }

    private function rootFn($num1, $num2)
    {
        return pow($num1, (1 / $num2));
    }
}


$calc1 = new AdvancedCalculator();

$calc1->add(1, 4);
$calc1->divide(8, 2);
$calc1->multiply(4, 2);
$calc1->root(4, 2);
$calc1->pow(4, 2);

$calc1->printOperations(); //Pokazujemy hostorię operacji