What are the differences? I know it wont be very different but how about the problems? Will it be ok if I get the 3rd edition for class instead of 4th? I don't want to do the wrong questions. Thanks in advance.
The publisher says that if you have the 3rd edition, then it wouldn't really be worth it for you to get the 4th. This leads me to think that nothing significant is different. I have the 3rd Ed and while I haven't worked through much of it... it is certainly sufficient for my needs :-)