he is wonderful and very kind, his lectures are always succinct. They were recorded and pretty similar to the textbook, but I would always go because he had a lot more enthusiasm for the subject than just if you were to read it on your own. Homework was always short, he would assign a problem set after every lecture, but really he only made you turn in 2 of them, but even the problem sets that were not required were manageable. His office hours were always helpful as well, and he was always willing to answer any question, overly conceptual or otherwise. He does proofs for certain things in class, but you were never expected to memorize any of them, it was just for understanding or if you forgot a formula or something, which was nice. Tests were always manageable and never unexpected.

Prof. Yanez is such a great and funny guy. Always starts off with a friendly “Hello!” and lectures with a smile.

Personally (coming from AP Calc in high school), I found that I understood the material best by reading the appropriate textbook section before each corresponding lecture and then Professor Yanez drove it home for me, especially in the earlier half of the class -- so be prepared to possibly have to read the textbook for this professor.

I really liked this professor! He was always kind and smiling in lecture, explained concepts clearly, and had a VERY fair hw policy. After every class, he would post a series of questions from the textbook that are good practice of the material we just covered, at the end of the week, only 2 of those questions will be asked to be uploaded and turned in as homework. To be clear, you only have to do those 2 questions if you feel confident with the material, or if you had a bad week with other classes! This is really great because you only have to study what you want and as much as you need to in order to learn a concept! Secondly, the tests felt very fair, and many of the questions were extremely similar to the practice problems the professor posted.
If you’re able to take this professor, take him!

Prof.Yanez is an engaging, clear-minded professor. He gives pretty structured lectures along with detailed lecture notes that are ready for us to fill out during lectures. After every lecture, he gives out a sheet of suggested problems and picks two as homework problems. Sometimes those problems can be somewhat tricky, but he offers to solve them during office hours. For the exams, although there is no practice exam, he pretty much follows the examples he gives on the lecture notes and homework problems as well as discussion problems. You'll be fine as long as you understand the logic behind some of the key concepts and the necessary tricks needed to play around with them (he also offers tons of explanation of the tricks during OH). Granted, real analysis is considered to be one of the hardest topics in undergraduate math and 131A as one of the most challenging upper-div classes. Yet in general, I think he makes real analysis more approachable than I thought it would be, and his teachings underpin a key component of our learning of mathematics, which becomes a milestone to embark on for the rest of the journey.

I found this class to be straightforward/easy, but ik not everyone else did. Fully depends on your background in calculus. Show up to class, take notes, do the homework, and go to office hours with questions. My TA was Benjamin Major, and he is awesome. His discussions are useful because they help you grasp the theory/understand why certain formulas work, etc. His office hours are also great; he'll help you a ton with problems you don't understand.

There are two midterms and one final. Homework assignments are about ten problems after each lecture, but you don't turn them in. At the end of the week, it picks two problems from all that were assigned that week and has you turn them in. Check your work with a friend and it should be easy points.

The midterms are during the lecture (40-50 mins long) and have problems that are exactly like homework. Honestly, it's pretty predictable what kinds of problems will be tested on the midterm if you do all the homework problems. Also, none of them are word problems; he gives you the numbers straight up.

absolutely loved this class, yanez is so friendly, helpful, and such a clear lecturer. tests were fair, work is manageable. i recommend doing all the practice problems he assigns as they really helped me ground the material and develop a better understanding of what we were doing, especially if you're in a math or math related major/ if you're taking 32b. there are a lot of resources, as the textbook is great imo. 32a is generally not a course you can cruise through and you definitely need to put in the work due to the course content, but yanez makes it fair and as easy as possible given what you need to learn. made me remember why i love math.

Loved this class and professor. Was scared to take multivariable but Yanez made it manageable, and would remind us to breathe before tests. He clearly cared, and I felt the midterms and final were fair. Highly recommend.