Here are some other places to look more in-depth information about the subjects we are learning about. If you have any other books or articles, list them here.
+ Concrete Mathematics is a book by Ronald Graham, Donald Knuth, and Oren Patashnik. This book is slightly more advanced that the textbook we are using. However, it provide many thorough explanations of the mathematics behind probability, sequences, and generating functions. You may find it useful as a second source.
+ On Numbers
