calc 1 vs calc 2 vs calc 3

[CheckRaise]

Calc II was the hardest for me but unlike you guys I found series and sequences to be the easiest part of the class. I had trouble with some of the integral stuff.

Edit:
This is off track but I need to take one more elective after the upcoming semester to complete my math minor and I was wondering what classes use the series stuff. I thought the Calc II stuff was kind of interesting but I don't know if there are any classes that specialize in that kind of stuff.

Maybe Real Analysis?