Poor

Professor Weng seems to be a nice guy. However, he can be very impatient with his students. In the beginning of class, he encouraged us to ask questions. But then, would shame anyone who asked by telling them "You should know this already". I'm pretty sure that the main purpose of the class is to learn the material.

Awful

Professor Weng comes across as a helpful teacher. He wants you to ask question. However, after the first test, he's done with that. He was very rude after that if you asked questions and had the attitude of you should know this already. You'll have a 50% shot of him helping if you talk to him privately. He will tell you about tutors or math lab. Sometimes it's hard to get in with a full time job. Honestly, I tried hard in this class.