<?php
namespace SolvoLabs;
/**
 * This class is used to realize some basic calculations.
 * For training purposes only, use bc_math functions instead.
 * @author Mickaël Andrieu <mickael.andrieu@solvolabs.com>
 */
class Calculator {
 /**
 * @var float The result to display.
 */
 private $result;
 /**
 * Creates the Calculator.
 *
 * @param float $initialValue
 */
 public function __construct($initialValue = 0)
 {
 $this->result = $initialValue;
 }

   /**
 * @param float $number A number.
 */
 public function add($number)
 {
 $this->result = $this->result + $number;
 }
 /**
 * @param float $number A number.
 */
 public function minus($number)
 {
 $this->result = $this->result - $number;
 }
 /**
 * @param float $number A number.
 */
 public static function multiply($number)
 {
    $this->result = $this->result * $number;
 }
 /**
 * @param float $number A number.
 */
 public static function divideBy($number)
 {
 $this->result = $this->result / $number;
 }
 /**
 * If the object is returned, the result should be displayed.
 *
 * @return string
 */
 public function result()
 {
 return $this->result;
 }
}