Calculator.php

<?php
 
namespace Money;
 
interface Calculator
{
    public static function supported();
 
    public function compare($a, $b);
 
    public function add($amount, $addend);
 
    public function subtract($amount, $subtrahend);
 
    public function multiply($amount, $multiplier);
 
    public function divide($amount, $divisor);
 
    public function ceil($number);
 
    public function floor($number);
 
    public function absolute($number);
 
    public function round($number, $roundingMode);
 
    public function share($amount, $ratio, $total);
 
    public function mod($amount, $divisor);
}