The required textbook for Math 331 is:
William E. Boyce and Richard C. DiPrima,
Elementary Differential Equations, 9th Edition,
Wiley, 2008
This text is available in several formats:
- Unbound, binder-ready version, ISBN 978-0470-404041, UMass Textbook Annex, $124.
- Used hardbound version, ISBN 978-0-470-03940-3, UMass Textbook Annex, $128.
- New hardbound version, ISBN 978-0-470-03940-3, UMass Textbook Annex, $190.75.
- Downloadable E-book version for Windows and Mac available on-line directly from the publisher, $110.50. (You’ll also need to download and install a specific free E-book reader; be sure your hardware and software satisfy the stated requirements.): http://www.wiley.com/WileyCDA/WileyTitle/productCd-0470457104.html
Used or new copies may be available elsewhere.
Make sure you are getting the Ninth (9th) edition. And you want the thinner book with title “Elementary Differential Equations” —not the thicker book with title “Elementary Differential Equations and Boundary Value Problems”.
Copies of the text are not available at the UMass Library.