Rosen sucks. He's a terrible lecturer. He talks really quietly and doesn't explain things well. He just copies his notes from the slides onto the board, and they have a lot of mistakes. He takes attendance though so you have to go to lecture and discussion, even though they're useless. I ended up doing really well in the class mostly because I had old tests. He lets you take in whatever you want into the tests, and repeats a lot of test questions. However, he has been mixing the questions up a bit so they're a little different than previous years. For the final he told us exactly what would be on the test, so just study that really well and you'll be fine. Also, he scrutinizes cheating a lot. Tons of kids got zeros on the take home midterm because they copied code. Make sure you write your own code - you'll get caught if you don't! The homework and projects take a lot of time but most of the solutions are on Slader or Chegg. He also lets you correct them to get points back. Overall, Rosen doesn't teach very well so you won't really learn differential equations. Just spend a lot of time on the homework and projects and come in somewhat prepared for the tests and you'll be good.

His class is hard but masked by a veil of simplicity, though overall Rosen just isn't a chill dude. He has a sign-in sheet and attendance accounts for part of the grade but people only show up to sign in (or well to sign in their 12 friends) because his lectures are near impossible to understand through his disorganization. He allows you to resubmit homework assignments to correct mistakes, but as the workload piles up each week it becomes hard to finish the assigned homework in the first place. The homework heavily relies on matlab, but that isn't even part of the curriculum and you're expected to learn it yourself. His exams are open note open book, but they are still extremely difficult and the take home midterm legit takes around 24 hours of straight work to solve. Overall the worst thing is that he submitted half of the class to the dean for cheating on the take home midterm with 0 basis and delayed the grades. Clearly, if he truly believes that half the class cheated on the assignment then something must be wrong.

A blemish on the academic standard of UCLA. A poor class, yet an even worse man. He is unclear about everything, dishonest, and never admits to making mistakes. Quite literally a 1st grader in a grown man's shoes.

Professor Rosen makes this class horribly painful. He reads straight off of his notes (which are hundreds of slides long) so its not helpful or condensed and he's really monotone. The only reason some people showed up was because of the sign in sheet, which he stopped half way through the quarter. The class is quite a bit of work, every week theres a 10 or so problem homework and a project, which can sometimes be quite difficult or time consuming. Because Rosen was such a slow teacher, he often only finished teaching the material on the homework the night before it was due. The only reason I did well on any of the homeworks is because he allows corrections with access to the answer key for full points back. His exams aren't overly difficult, they are open book and he says whats going to be on them. He isn't helpful in office hours, he often told me to just go see the TAs or read his notes. Although this class is a pretty easy A, its a fair amount of work and frustration. If you can get out of taking 82, I wouldn't take it.

Although this course was somewhat mentally taxing at times, I think that in retrospect it was definitely worth the effort. Whatever else may be said about Professor Rosen, he is strict but fair in his class policies, and has an extensive understanding of the subject matter.

This course is somewhat inaptly named; it is essentially differential equations (MATH 33B) in an engineering context, with introductory control theory and system design involved as well. As such, it involves concepts not covered in 33B, including the Laplace transform, complex-plane analysis, and system stability.

When I took the course, the workload was rather heavy; since then, it would appear that this has changed in response to student feedback. It is now possible to choose one of four homework plans, with different weights placed on different components (homework/projects/exams); this allows students to tailor their work in this class somewhat, based on their strengths, which I believe is beneficial.

One quibble which I continue to have with the course is the lack of a strict MATLAB prerequisite; several projects and a portion of the take-home exam involved the use of Simulink to simulate system behavior, and this topic is not at all covered in the course. As a result, students are forced to learn Simulink "from scratch", which negatively impacts the quality of work.

Overall, I would recommend this professor for the comprehensive nature of the course, if not his teaching style; while this course will challenge you, you are likely to get a good grade (A/B) at the end.

Rosen is a pretty bad lecturer. Most of the class ended up being self-taught, but the exams are open note so it works out. Also it must have a crazy curve because I did not think I would end with an A-. If you're taking this class you probably don't have much of a choice, so just be ready to read through the textbook and figure everything out via the homework.