NOTE: The package NOPH 1.0 is developed on the platform of standard Maple 15. As the input form of classical Maple and standard Maple are different, I strongly recommend you to use the NOPH in standard Maple 15 or higher version. In the following, six examples are given to demonstrate the usage and effectiveness of the package. Please note that example files are in the format of Maple worksheet. So you can only open these files by Maple. 