He's great~

Ronchetti is someone who truly cares about his students. Only in his math class have I rediscovered my interest in the subject. His lectures are always articulated clearly and the mathematical concepts are always easy to follow.

I love Ronchetti. Beast of a man. Great professor.

That being said, his class is significantly more difficult than your typical Math 33A course at UCLA in that Ronchetti expects a lot from his students. His lectures are clear and he always is open to taking questions during class. I would recommend going in person just because Bruincast doesn't always capture questions (or have good videography) and I personally find him much more engaging in person. Definitely recommend going to office hours if you can! I pretty much LIVED in his OH (bc ngl I'm not the best at linear) and got to get to know the prof pretty well. He's super duper understanding and able to reexplain concepts in different ways until you get it. Also a little sassy HAHA.

His homework is difficult in that it builds on concepts learned in lecture in a lot of ways including proofs (although he says they aren't proofs lol they are proofs). Even the computational problems are pretty time-consuming as they often involve ugly numbers or 4x4 matrices. They do force you to develop a much more thorough and interesting understanding of the content. But yeah his homework took quite a bit of time.

Midterms and finals were pretty difficult but overall, Ronchetti is fair in assigning grades. As long as you keep up with the material and make an effort to really understand what's going on, it's a rewarding course to take. Also Ronchetti is cool and the class was interesting because Ronchetti was so into the material yafeel?

If you're just trying to coast through math for the requirement or not looking for a challenge, though, I would take a different lecture. Last rec is to MAKE TIME to understand the material; that was my mistake. Deuces!

This class really hard! Many concepts require you to check out the proof and details in the textbook. All the exams are always in a rush. Our midterm1 mean is around 31/50 and midterm2 mean is 34/50.

For class vibe, most people I met and talked to are pure/applied math and hardcore engineering majors. As a life sci student, it's hard. The class seems to be chill, but contents are not.

If you have no other choice, please go to office hour from Week1 and try to go there with bunch of questions after reading textbook. And as Prof. himself said, "practice A LOT!" If you got nothing to do in your holiday, you better learn about the content on your own first, eg. through MIT open course and practice questions.

The most important thing: choose a good TA! for me, not Dean, who I stop going to the discussion after week2 as it's hard to follow.

Ronchetti is great, though you might find him unbearable for the first one or two weeks as he pours definitions into his lecture. But he always makes sure to explain and expand on these theorems and definitions. He gives very clear lecture in general. All of his lectures are on Bruincast, so it’s okay if you don’t physically go to his lectures.
His homework stretches your mind, but not to the extent of being unintelligible. Lots of the ideas in the homework help you to know the larger picture of linear algebra and even provides you with rigorous ideas of proof, presumably making your 115A a lot more easies (yes, Math major here).
If you are dedicated or you are smart, 33A with Ronchetti is a very good choice.

The WORST CLASS ive ever taken in my life. Avoid at all cost. He should be fired, I even went to the math department to have this done. He does not teach to the standards of UCLA, and by that i mean he is too difficult. We get it you're good at math, but im a STUDENT and this is a prereq for a lot majors. I changed my major after this class, 31B. I spent over 40 hours a week studying to fail every test, along with most people, however, the curve somewhat makes up for this. He's also a terrible professor and ruined my life for 10 weeks. He seems good at first but don't believe it or you will be in for a rude awaking.

This is a review for Math 115A.

I consider Ronchetti the best professor I have had. I had him for Math 33A and that class was extremely difficult, but surprisingly his Math 115A class was not too challenging compared to the other sections (we covered the same material and had similar test averages).

You will hear a lot about Ronchetti being extreme and too demanding, but 1. It’s over-exaggerated and 2. For Math 115A he was a lot more chill.

First of all, Ronchetti is a great teacher. He covers concepts clearly, mostly follows the book, and takes time to address questions during class. He also always BruinCasts his lectures (he did so for Math 33A too).

Second, What Ronchetti did that was amazing was come up with a lot of his own homework questions that were challenging but fascinating and taught you a lot. I really enjoyed the homework questions he came up with, more than the textbooks problems we had.

Ronchetti is also extremely helpful during office hours and will change his hours to accommodate for when the midterms are. He is also extremely intelligent (he was a chess international master) but super humble about it and really kind.

Ronchetti’s curve for this class is somewhat generous (midterms had 48 averages, you said you needed around 19 for C-/C/C+, 43 for a B-/B/B+, 65 for A-/A/A+).

Overall, Ronchetti is an absolute beast. If you want a GOOD and somewhat CHALLENGING professor, take Ronchetti. You won’t regret it.

Ronchetti is really smart and teaches his class with the same expectation of his students. He gives really hard midterms and finals, and even his weekly homework isn't easy. But, he is a really good lecturer that is super clear with his ideas. He's great to go to office hours if you need help understanding material and clarifying information. If you want to become a better math student, Ronchetti will be a great professor to take. If you're looking to relax and finish off your math requirements without too much effort, there are better professors for you.

This class was so hard. Traumatizing as a first university math class. He's a good lecturer with good notes but don't let that trick you. The homework takes forever and is super hard after the first week and he comes up with problems himself. Your hand will be tired from taking notes in class, it's non-stop note taking. Tests fluctuated in difficulty, i.e. the first midterm and final were super hard. Good luck if you have him.

Professor Ronchetti is a great professor. He explains the concepts clearly and is a great communicator. The homework that he assigns every week is pretty difficult, but will give you a great understanding of the material, so much so that the midterms feel like a breeze. I would highly recommend if you want to take Math 33A and get a good understanding of the material.