The exams were very detailed so it was hard to get full points on every problem. The material wasn't too difficult, but it was asked in confusing ways. He's funny and I enjoyed going to lecture and section, I just wished his exams were more straight forward.

Simply reads off the powerpoint slides during lecture. Exams are very thorough and therefore not easy. Homework is not very helpful in preparing for the exams -- go to section!

Dai's lectures consisted of him flipping hastily through confusing/unhelpful PPT slides (never enough time to get notes down), online homework problems usually had no connection to things 'taught' in lecture (everyone I knew in the class used yahoo answers on the daily), and test questions were often excessively tricky. Would not recommend him.

I didn't think he was a bad professor at all. He is a little hard to understand at times but he has a good sense of humor and is always willing to help. If you have trouble understanding him TAs or CLAS is very helpful too. Definitely go to review sessions before midterms and the final because there is a lot of vocab in 4A.

Even if you fully understand the material, you'd most likely receive an unsatisfying grade from trick questions on midterms/finals. I would not recommend

Funny but not that good of a professor.

One of the worst professors I had at UCSB. His lectures were slow and confusing. He lost me many times. He would spent a bunch of time on one concept and then skip the next one. Quizes were useless and repeated each other. Tests were all trick questions that didn't actually test a students knowledge of the material. Stay away at all costs.

my favorite math professor! make difficult materials clear and simple. Just do your hw, you'll be fine.

Very organized. Good clear lecturer, doesn't move too fast.Wants student feedback. Lots of difficult homework, but the midterms and final are exactly like the homework. Clear expectations of students. Final worth 50% of grade. Very helpful at office hours. Tells math jokes to cheer students up a little. Though he's tough, overall very good teacher!

He's an amazing professor! He's very clear; his notes are posted online but go to class so you can see the examples. If you go to lectures and do the hw, you should be fine. The final was harder than the midterm but not impossible. He's also hilarious with his Euler jokes!

Class kind of derailed after we ran out of webwork assignments. Final was pretty tricky, especially after being told it would look exactly like our HW (which it only slightly did) I managed to get full points in the class up to the final, but after the final I got a B overall. However, he is hilarious, and seems to actually care about his students.

He is a fantastic professor and his lectures are really interesting. I really did not like my TA, and I slacked on my homework which is why I did not do as well as I thought I would. If you take this class, definitely go to all the lectures and you will be fine.

Professor Dai is one of the better math professors. He made learning the information easy and relatively straightforward (at least for a math class.) The exams were homework based: the midterm was extremely easy but the final was actually really difficult. Overall I think that he's a professor worth taking--if nothing else than for his Euler jokes!

Good professor. Midterm was easy, final was relatively hard.

Clearest math prof ever; makes everything seem straightforward. Cracks a lot of jokes in class. It's not one of those classes where you go for fun, but his lectures are definitely more bearable than a lot of other classes. Basically, he rewards the people who study hard, so make sure you do that because you really only have so many assignments.

Very funny guy and good at explaining the material. Problem is he makes the final extremely difficult. I did well in everything but the final and ended up failing the class even though I knew the material.

Professor Dai is an awesome person. He enjoys to tell jokes and he likes to make his students laugh. Midterm and Final are all homework based, so if you do the homework, tests should come easy. He teaches general math concepts and then incorporates examples, which really help understanding the material.

This professor is one of the best I've had. He has a great sense of humor and if you pay attention in class, you'll will understand it 100%. The homework also helps you understand and it usually isn't a lot of questions. Take any class you can with him. Highly recommended.

had almost no clue what he was saying first day, but after a few lectures you understand everything

His lectures are not necessary to go to because you could find everything online, but they are helpful since most of the homework is based off of his lecture. He does have an accent that you have to get used to so it is tough in the beginning. But once you move past that you can just follow his notes for the homework and tests, since they are clear

not a bad professor. He spent too much time with his drawings and little explanation but his exams were very similar to the practice exams he posted so that made it easy just get help beforehand and easy final and midterm

A nice little Asian guy. Tries to make jokes during class but he can be hard to understand sometimes. I would recommend taking CLAS and you will pass this class with an A. his tests are quite easy if you keep up with the material. DO NOT BUY THE BOOK...waste of money. you never use it.

he was really hard to understand, though he tried really hard to keep the class entertained with his little drawings and jokes

Could not understand anything he was saying. Eventhough he is a very smart, nice guy he does not know how to teach one bit. Midterms and Final so much harder than the practice tests. Run while you can!!