interface.ilMathAdapter.php

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<?php
 
interface ilMathAdapter
{
    public function add($left_operand, $right_operand, ?int $scale = null);
 
    public function sub($left_operand, $right_operand, ?int $scale = null);
 
    public function mul($left_operand, $right_operand, ?int $scale = null);
 
    public function div($left_operand, $right_operand, ?int $scale = null);
 
    public function mod($left_operand, $right_operand);
 
    public function pow($left_operand, $right_operand, ?int $scale = null);
 
    public function sqrt($operand, ?int $scale = null);
 
 
    public function comp($left_operand, $right_operand, ?int $scale = null);
 
    public function equals($left_operand, $right_operand, ?int $scale = null): bool;
 
    public function applyScale($left_operand, ?int $scale = null);
 
    public function round($value, int $precision = 0): string;
}