Instruct: Classify the given Amazon review as either positive or negative.
Query: Confusing

This is an expensive math textbook which is confusing and has errors here and there. The answers to some of the exercises are incorrect. The algorithms provided in the text are very hard to understand and the code from the attached CD did not really match the algorithms in the book. If you're looking for a straightforward numerical analysis textbook, don't waste your money on this book like I did.