src/Zend/Locale/Math.php
public static function Add($op1, $op2, $scale = null)
    {
        $op1 = self::exponent($op1, $scale);
        $op2 = self::exponent($op2, $scale);

        return bcadd($op1, $op2, $scale);
    }
public static function Add($op1, $op2, $scale = null)
    {
        $op1 = self::exponent($op1, $scale);
        $op2 = self::exponent($op2, $scale);

        return bcadd($op1, $op2, $scale);
    }
public static function Add ( $ op1 , $ op2 , $ scale = null ) { $ op1 = self :: exponent ( $ op1 , $ scale ) ; $ op2 = self :: exponent ( $ op2 , $ scale ) ; return bcadd ( $ op1 , $ op2 , $ scale ) ; }
BCAdd - fixes a problem of BCMath and exponential numbers

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