I don't know how this happened by college has given me credit for Calc II even though I didn't take it. I took AP calc I but not AP calc II, but the college has given me credit for both. I am a Civil engineering major and I am wondering if I should try to audit the class next semester (meaning I would just sit in the class for no credit, and I wouldn't take the tests), or could I learn calc II from online videos and/or other materials. I'd hate to pay to take a class I already have credit for ( although financially that wouldn't be a problem) and I'm already gonna be spending 5 years getting my bachelors, I don't want to make that any longer. My three questions are: 1. Could I make it through a Civil engineering bachelors program teaching myself calc II? 2. Could I make it through a Civil engineering Masters program after teaching myself calc II? 3. If I was able to do 1 and 2, would I be capable of being a good engineer after having never formally taken calc II in a classroom? Any advice from engineers would be helpful, thank you.