Advice: Finding a bug
Any very large software project has bugs, and Maple has plenty of them. It's not unlikely that after using Maple for a while you will discover some bugs.
If you find what appears to be a bug, first make sure that it really is a bug rather than your own mistake. Check the Maple Advisor Database and the help pages on the functions you are using, to be sure that you are using them correctly. Perhaps try some simpler examples, to determine the nature of the problem and under what conditions it appears. If possible, consult a more experienced Maple user (your instructor, if you are a student).
If you still think it is a bug, you can report it by e-mail to the Maple developers at firstname.lastname@example.org , or to the Maple User Group.
See also: Can Maple be trusted? , Maple User Group
Maple Advisor Database R. Israel 1997