MATH 131A
Analysis
Description: Lecture, three hours; discussion, one hour. Requisites: courses 32B, 33B. Recommended: course 115A. Rigorous introduction to foundations of real analysis; real numbers, point set topology in Euclidean space, functions, continuity. P/NP or letter grading.
Units: 4.0
Units: 4.0
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Most Helpful Review
Spring 2023 - I really loved 131A with Professor Wu! He is an amazing professor, during lecture he used many colored chalks and helped build intuition for the harder concepts. He also always provided midterm/final reviews and during office hours he was very approachable and helpful. Although the class is one of the hardest math courses, this class really helped me build strong foundations in proof writing and core concepts I still use. It was overall a very rewarding class, so if you have the option to take 131A with Wu, I highly recommend. You will learn a lot and are in good hands :)
Spring 2023 - I really loved 131A with Professor Wu! He is an amazing professor, during lecture he used many colored chalks and helped build intuition for the harder concepts. He also always provided midterm/final reviews and during office hours he was very approachable and helpful. Although the class is one of the hardest math courses, this class really helped me build strong foundations in proof writing and core concepts I still use. It was overall a very rewarding class, so if you have the option to take 131A with Wu, I highly recommend. You will learn a lot and are in good hands :)
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Winter 2025 - I kinda disagree with my classmate's post. First the median for midterms is 16.25/28 with std 22%, and 36.6/51 for final with std 17%. which I think not too bad for an upper-division math class, especially real analyze is not an easy topic. His teaching is pretty good at least in my opinion, and he offered all the lecture notes at the beginning of the class, so you can study ahead and review the topics easily. Talking about the test, the test itself is not hard, and he is definitely not a harsh grader. Since his idea for this class is intuitive combined with logic, so you don't have to prove things super rigorously. Also he is a really nice guy, I did pretty bad in midterm since I just recovered from the flu, and I was a little lost, so I emailed him say if I can schedule a meeting with him to talk about the reason why I did not get the grade I expected, and he said yes quickly. The final grade is A 96%-90%, A- 90%-86%, B+ 86%-80%, B 80-74. and everyone in the class get at least a C-.
Winter 2025 - I kinda disagree with my classmate's post. First the median for midterms is 16.25/28 with std 22%, and 36.6/51 for final with std 17%. which I think not too bad for an upper-division math class, especially real analyze is not an easy topic. His teaching is pretty good at least in my opinion, and he offered all the lecture notes at the beginning of the class, so you can study ahead and review the topics easily. Talking about the test, the test itself is not hard, and he is definitely not a harsh grader. Since his idea for this class is intuitive combined with logic, so you don't have to prove things super rigorously. Also he is a really nice guy, I did pretty bad in midterm since I just recovered from the flu, and I was a little lost, so I emailed him say if I can schedule a meeting with him to talk about the reason why I did not get the grade I expected, and he said yes quickly. The final grade is A 96%-90%, A- 90%-86%, B+ 86%-80%, B 80-74. and everyone in the class get at least a C-.
Most Helpful Review
Winter 2024 - Great professor and someone you should take for a class like this. While homeworks could be a bit tricky, he offers to solve them in office hours. Notes do go by the book, but he usually provides alternative proofs to various theorems which helps with understanding. Exams were fair and he never tried to trick you. They were based off of in class examples and homework problems. I wish he were teaching 131B because he did a great teaching this course.
Winter 2024 - Great professor and someone you should take for a class like this. While homeworks could be a bit tricky, he offers to solve them in office hours. Notes do go by the book, but he usually provides alternative proofs to various theorems which helps with understanding. Exams were fair and he never tried to trick you. They were based off of in class examples and homework problems. I wish he were teaching 131B because he did a great teaching this course.
Most Helpful Review
Spring 2017 - Took him for 131A. Avoid this professor at all costs. The midterms and final are doable. However, the material itself is already very difficult and this professor did a horrendous job of teaching it. All of the lectures were him mumbling incoherently, and it is extremely hard to understand him through his accent, making it basically impossible to learn from lecture. In addition, after writing something down on the board, he will often erase it immediately rather than erasing something he wrote earlier. Out of the ~40 people who were in this class from the beginning, only 9 people, including myself, were showing up consistently during the last few weeks. That's not a typo. Several of them dropped out, as evidenced by the grading distribution of the final showing a paltry student count of 22. The averages for the midterms were around 50-55%, and presumably the only reason the average for the final was higher was because of the lower student count. The only reason why I managed to pull a reasonable grade in this class was because of the TA's much more helpful discussions, though unfortunately one discussion a week doesn't make up for 3 whole days of inefficient lecturing. If you're a self-learner, you may do well in this class. But otherwise, choose a more well-known, competent lecturer instead of this guy. He is the absolute worst lecturer I have had at UCLA and doesn't deserve to be teaching at all.
Spring 2017 - Took him for 131A. Avoid this professor at all costs. The midterms and final are doable. However, the material itself is already very difficult and this professor did a horrendous job of teaching it. All of the lectures were him mumbling incoherently, and it is extremely hard to understand him through his accent, making it basically impossible to learn from lecture. In addition, after writing something down on the board, he will often erase it immediately rather than erasing something he wrote earlier. Out of the ~40 people who were in this class from the beginning, only 9 people, including myself, were showing up consistently during the last few weeks. That's not a typo. Several of them dropped out, as evidenced by the grading distribution of the final showing a paltry student count of 22. The averages for the midterms were around 50-55%, and presumably the only reason the average for the final was higher was because of the lower student count. The only reason why I managed to pull a reasonable grade in this class was because of the TA's much more helpful discussions, though unfortunately one discussion a week doesn't make up for 3 whole days of inefficient lecturing. If you're a self-learner, you may do well in this class. But otherwise, choose a more well-known, competent lecturer instead of this guy. He is the absolute worst lecturer I have had at UCLA and doesn't deserve to be teaching at all.
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