He is one of the worst teachers at UCSB. He is very incomprehensible....have the time I am trying to figure what he is saying rather than actually comprehending the material. The midterm is pretty easy, but he made the final impossible. Everyone was there the whole three hours and even the TA's said it was one of the worst finals they had seen.

His lectures can range from pretty good to not very helpful at all, but I recommend going to his lectures anyway as some of the things he does in lecture are likely to end up on his tests. Gave 25% worth of extra credit points on the midterm. Really loves critical point problems. Final was harder but curves the class.

Vague prof who jumps around in the book, go to 'pauls math notes' on the internet, that website saved me in the class, the book and the prof imo were not too helpful

Horrible, horrible lectures. Completely mislead the entire class this quarter on the material that would be covered on the final. Had an amazingly easy midterm. Class average was a 90/100. Final was insanely difficult as the material mainly consisted of the last two weeks of class that was very weakly covered. Should have spentmore time with topics

Ye does not connect well with students. His class notes are useful and he is understandable, but his homework and tests are generally harder than what he personally presents. CLAS definitely recommended.

The first time I had him in 3C (i think) he was very hard to understand and i retook the class... but after having him again in 5b i realized you should just read what he writes instead of listening to his jibberish... tests are easy (THANK GOD!) though lots of hw.

Horrible professor!!! You can't understand anything he talks about in class and his language in totally different from normal language. He gave partial credit for his midterm but for his final he changed his mind and didn't give partial credit at all!! You definitely have to take CLAS for this class its will be the only way you understand the topic

Ye does not connect very well with students - I learned far more from CLAS and the TA than I ever did from lecture. Assigns TONS of homework, often too much to finish (and its only worth 10% of your grade). While he does have an accent, his English is perfectly understandble. Tests arent TOO terrible, but midterm & final are 30 & 60% of your grade

Great mathematician, bad educator. Does not speak in language of students, definitely does go on tangents that are irrelevant to class material.

With CLAS, this class was a breeze, his tests were fair and non-trivial. Do the homework to understand the subject and you are on track to getting a good grade in the class.

Dr. Ye is extremely bright and seems to be good at problem solving however uses a high degree of mathematical sophistication in his proofs which leaves many lost. He is extremely lazy(never collected homework cause he didn't want to grade) and is unapproachable outside of class however very polite. Only gave 15 min of office hours each day.

I thought previous comments about Ye were somewhat unjustified, or maybe he's changed his ways. Possibly he teaches 5B better than 34A. In any case, his tests were definitely not unreasonable, and he is enthusiastic about the material. Contrary to previous comments, his English is fine. Be warned that about 60% of your grade depends on the final.

The class shouldn't be as difficult as he makes it for some people. Cares less about the students than any other professor

He is not so bad as many wrote. He is honest and polite, at least. His feeling of students is poor, I agree. There were about five students in the class, but he spoke if he were in front of one hundred not bothering if students followed him.

hands down, rick ye is the worst teacher I have ever had.