src/Zend/Locale/Math.php
public static function Mod($op1, $op2)
    {
        $op1 = self::exponent($op1);
        $op2 = self::exponent($op2);
        return bcmod($op1, $op2);
    }
public static function Mod($op1, $op2)
    {
        $op1 = self::exponent($op1);
        $op2 = self::exponent($op2);
        return bcmod($op1, $op2);
    }
public static function Mod ( $ op1 , $ op2 ) { $ op1 = self :: exponent ( $ op1 ) ; $ op2 = self :: exponent ( $ op2 ) ; return bcmod ( $ op1 , $ op2 ) ; }
BCMod - fixes a problem of BCMath and exponential numbers

@param  string  $op1
@param  string  $op2
@return string
BCMod - fixes a problem of BCMath and exponential numbers