I have just taken his class for Math 108B. Lectures were not very helpful. The midterm grades were not released until nearly 5 weeks after we took the midterm and the questions that Ye graded had no visible corrections, just "points deduction" and the amount of points deducted. He did post solutions to the midterm. If possible, avoid professor Ye.

lectures were not very helpful as they were disorganized and hard to follow. i would recommend just reading the textbook and doing the practice problems that he assigns. the tests are not hard, so do not stress out too much if you do not understand the lectures

Easy A. Your grade primarily consists of the midterm and final(50%). Both were very easy and gave tons of partial credit. Fitting for the amount Ye actually taught. Lectures are very disorganized and dull, primarily proofs and variables, very small amount of real examples. Thick accent. Skipped a little under half of the material needed.

Thick accent and lectures were a bit hard to follow at times, but homework was super short and reviewed concepts efficiently and exams were very fair with a page of notes allowed and curve provided.

Accent is hard to understand, had to learn most of the concepts on my own, because class was mostly spent going over wild tangents

Ye is one of many atrocious teachers in the UCSB math department. Unfit to teach a lower div math class.