Reviews of professor Guangqu Zheng

Rating: 4.0/5, difficulty: 3.0/5
The super negative reviews for this man are completely unfounded. I took 526 with him over the summer during the coronavirus pandemic. He made very high quality videos to cover course materials. It was obvious that he put a lot of effort into them. Grading was far from harsh. Test were easy/medium. He replied the same day anytime i had a question.

Rating: 5.0/5, difficulty: 5.0/5
I don't understand why he got those negative reviews, my classmates and I think he is really a nice guy. Probably because this course is not easy. He was well prepared for the course and wrote a lot of high-quality lecture notes. He responded quickly to my question, and always patient during office hour. I would like to take his other courses.

Rating: 3.0/5, difficulty: 5.0/5
One of the tougher classes I have taken. Lectures are largely him reading and highlighting his own notes. Uses unclear notation; often difficult to follow. Often skips explanation of difficult material while proving arbitrary material. Lectures sometimes do not clearly reflect homework material. Ask a LOT of questions.

Rating: 1.0/5, difficulty: 5.0/5
Horrible instruction, lectures impossible to follow, tests on material not covered in class or homework, stubborn. Avoid this class if you can, one of the absolute worst instructors Ive ever had.

Rating: 5.0/5, difficulty: 5.0/5
Guangqu is an amazing professor, he is super smart but it would be better if he could speak a little bit slower.