return str($this->list);
    }
    /**
     * Returns the sum of this polynomial and the specified polynomial.
     * This method is not implemented.
     *
     * @param object IPolynomial $poly
     * The polynomial to be added to this polynomial.
     * @return object IPolynomial
     * The sum of this polynomial and the specified polynomial.
     */
    public function plus(IPolynomial $poly)
    {
        throw new MethodNotImplementedException();
    }
    /**
     * Main program.
     *
     * @param array $args Command-line arguments.
     * @return integer Zero on success; non-zero on failure.
     */
    public static function main($args)
    {
        printf("PolynomialAsOrderedList main program.\n");
        $status = 0;
        return $status;
    }
}
if (realpath($argv[0]) == realpath(__FILE__)) {
    exit(PolynomialAsOrderedList::main(array_slice($argv, 1)));
}