Angelopoulos actually dicked me every class with super long, boring proofs, nothing like what I expected out of my first math class at ucla. This man is the real greek freak. Super helpful in reviews and office hours tho, gotta give him props for that. I worked hard for the final and salvaged my grade (which was about to be a C), so its definitely not impossible to get an A.
Bottom line, try not to take him, but if you do, work hard from the onset.

I second that the calculations were insane on the final. So many radicals as components of vectors that we needed to normalize again... and again. I love math classes, and am also taking honors multivariable, but this class was boring and frustrating - even though he showed us the proofs, he never explained why anything was happening. This class is fine, but not ideal. Good luck!

very good

I fell asleep in most of the classes, but I managed to get an A by reading the textbook and doing practice problems. He teaches straight from the textbook, and his tests cover numeric problems and proofs that were performed in class on identities or transformations. He's not the greatest teacher ever, and I wouldn't recommend taking him. However, if you're like me and you're stuck in his class, you can manage to do well.

This professor was kind of a nightmare. He had insanely high standards for what the students had to know and he made the class primarily about proofs rather than actual calculations. Half the tests were classic 33A calculations that you can't afford to mess up on because the other half is straight up proofs. In fact, the TA's told us that if we had to take Math 115A to just do it next quarter because HE HAD BASICALLY TAUGHT THE EQUIVALENT OF THAT IN THE LOWER DIVISION.

I got by alright because I had an amazing TA (Jean-Michel Maldague!!!), went to every TA office hour and review session I could and did almost every conceptual problem out of the book chapters we covered.

A couple of saving graces: He had a review session before the test where he more or less told us what was gonna be on the test. I heard he also gives out extra credit now and he scales the class so that the average is a B so just look at the average on tests for how you're doing.

Final Grade: A-

Yannis is honestly a great guy. He can get a bit sassy during lecture, but if you visit him during his office hours (which nobody goes to btw), he's extremely patient and helpful, and you can't ask for much more than that. He hosts his own 3-hour long review sessions before every test, and trust me, you don't want to miss those. He gets a lot of hate for being a very theoretical professor, but as a math major, you really need to appreciate that. As such, I strongly encourage any math major to take 33A with Yannis. It really sets you up well for Math 115A!

Angelopoulos means well, but more often than not his lectures make absolutely no sense. The material isn't too bad except for all of the proofs that the content requires. He gives mandatory quizzes in discussion sections, which seems annoying but helps you stay on track. Make sure you read the book and take notes from that when you inevitably stop going to lecture.

The lectures were terrible, but the course itself wasn't too bad.