As an undergraduate physics major I'm required to take a course in math methods of physics, and Boas is the required text. Not only did I save money by purchasing online, but this book is FANTASTIC. The text itself support the arguments we cover in class, but the book knows no bounds. In my other physics and math courses I've already looked up topics and found a complete and easily understood explanations. I'm definitely not selling this one after the course is over.<br><br>Just as an update, I'm now taking a course in Complex Analysis with my college's math department, and three weeks into the semester have yet to experience any difficulty with the material since, for the most part, I covered it already in Boas.