The best math professor. I've had him for 104a, 104b, and now 104c. The review sessions before the midterm and final are extremely helpful, homeworks can be tough but are doable, and the lowest 1-2 are dropped. 2 midterms but lower one is dropped. Take his class if you have the chance!

Heavy accent and doesn't really explain things well. as others have said he copies notes/lectures from another prof and often presents incorrect information. Hw takes FOREVER to do and is very code-heavy, pain in the behind tbh. exams are pretty difficult and relies on memorization of concepts. overall do not recommend (i also took 104b with yang)

legendary. Guaranteed A if you go to lectures and put in a little effort.

Took this course in the summer. Checks attendance every now and then (~10% of grade)Hard material but his lectures were fun to attend for me, as long as you learned the concepts it was fine. HW does require coding knowledge, he doesn't teach you to code but is helpful in OH. 2 exams that were ~4-5 questions with T/F and curved a lot at the end.

Prof Xu Yang is very nice and patient. He has review sessions that help us prepare for mid & final, which is SUPER helpful. drop the lowest for one of the hw & one of the mid.

Not a good teacher. Not a good teacher. He rewrite the note on board and there is no practice for the exams.