Question on the Boas Math Methods book.
I'm going to pick up a math methods book to beef up my more physicsy math, as it were, since the math program at my school is less geared to physics and engineering and more towards education, business, and computer science (and the physics program itself is falling apart).
All the rage seems to be around the Boas book. So I looked it up on Amazon and found that in the used and new section I can get 2e for about fifteen bucks, while I can't get the 3e for less than seventy.
Is there a significant difference between these two editions that would warrant the investment in the third edition when I'm just going to use it for some casual self-study?