wasn't attentive to student needs :(

Super disorganized, hard to understand his speech or handwriting, no response to emails, posts hundreds of hw problems but doesn't say which are important, midterms and final consists of some stuff we don't spend any time on. Didn't show up to any of his exams which all had grading errors, Yang is intelligent and a nice guy, but bad at teaching.

Extremely unorganized from the start. He writes so messily on a tablet and his explanations are so bland. He changed his grading scale so many times throughout the quarter. He never showed up to exams because they had mistakes on them. Some things on the midterms were never covered in class. Some people aren't meant to teach and he is one of them.

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.