Reviews of professor Yang Yu

Rating: 4.0/5, difficulty: 2.0/5
His grading rubrics are much more benevolent than those of my other professors, especially extra credits he provides. Most of questions can be found in textbooks or his lecture notes.

Rating: 5.0/5, difficulty: 4.0/5
Professor Yu's lecture is not easy, probably because the textbook is not easy and misleading. His slides and assignments are great. And he is also improving during the semester.

Rating: 5.0/5, difficulty: 4.0/5
It's a challenging course but I love it!

Rating: 5.0/5, difficulty: 4.0/5
Course is tough, slides are difficult, but he was very patient and very clever to explain everything. Exams are not hard if you treat every homework seriously.

Rating: 1.0/5, difficulty: 5.0/5
He is very bad at explaining even the most basic of concepts, partly due to his poor English, and partly due to his lack of ability to teach. He goes over some practice problems, but sometimes has trouble solving them himself. He often resorts to just writing out the answers from an answer key, and does not explain many of the intermediate steps.

Rating: 5.0/5, difficulty: 3.0/5
It is a course not easy to deliver online but Yu is very knowledgeable and helpful. I learned a lot from his lectures.