MATH 115A

Linear Algebra

Description: Lecture, three hours; discussion, two hours. Requisite: course 33A. Techniques of proof, abstract vector spaces, linear transformations, and matrices; determinants; inner product spaces; eigenvector theory. P/NP or letter grading.

Units: 5.0
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Overall Rating 4.0
Easiness 3.0/ 5
Clarity 4.2/ 5
Workload 3.0/ 5
Helpfulness 4.3/ 5
Most Helpful Review
Winter 2020 - I was originally intimidated by the harsh comments here about Prof. Hempel, but they are not true. (Which I think is partly because she’s also changed since first several quarters here?) Prof. Hempel gives engaging lectures, though we didn’t get to finish the last part due to UCLA canceling classes. But her notes are neatly arranged and provide you full guidance in the process. She is a ‘magician’ who demonstrates complicated theorems and proofs in a straightforward, clear and sometimes novel way. She’s also very helpful through the course, and you can tell she has so much passion about the subject. The homework grading policy has changed since this quarter: if you get 50% more on the homework, she will give you full credit for the homework, which accounts for 10% of the course in total. The two midterms are, to be honest, a bit hurry for majority of the people, having an average around 70%. But it’s bearable and somehow trivial if you do the homework diligently and have a clear understanding of the subject. I can’t speak of the final because it’s take home this quarter due to the corona virus situation, but it’s by no means hard given the time limit is not enforced and you have access to everything you want. Above all, this is my personal experience. If you are considering taking 115A, Prof. Hempel is a good teacher who can lead you through. But I definitely recommend auditing different lectures before you make the decision. Experiences vary for different people.
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Overall Rating 3.7
Easiness 2.0/ 5
Clarity 3.1/ 5
Workload 2.6/ 5
Helpfulness 3.9/ 5
Most Helpful Review
Spring 2020 - DISCLAIMER: I TOOK THIS CLASS DURING THE FIRST FULL-TIME ONLINE QUARTER SO EXPERIENCES MAY VARY. Professor Honda is super approachable and a nice guy. He is always looking for questions and is happy to clarify something if you ask. However, his lectures are a hit or miss. Sometimes, he gives good lectures, but other times, he just reads off his slides. He often says things like "you know, this would be clear if I fully wrote it out" but never actually fully writes things out. He is not intimidating at all or anything like that, but I still didn't find his office hours to be that helpful. He knows his material but just has a hard time explaining at times. Grading: Since this was the COVID quarter, grading was weird. We had 8 weekly quizzes and they summed up 68 percent of your grade. The midterm and the final made up the other 32 percent (16 percent each). The quizzes are often from the homework he doesn't collect. However, he did have a few quiz questions that were too difficult. Otherwise, the quizzes aren't that bad. The midterm was also reasonable, but the final was a bit on the harder side. However, we had 24 hours to do it, so people did well. His curve, even though he said it would be generous, was a bit weird. I think his curve helps those who are doing badly than those who are doing well. His gaps between B+ and A- is too much, but getting an overall way below the median still pretty much gives you a B or B+. I didn't like the curve, but it is what it is. Overall, Honda isn't a bad professor, but there are definitely better. I wouldn't avoid Honda, but if there are better option, please go with those. As for the material of 115A, this is the first class you will probably see proofs, but it is honestly doable if you just stick to the definitions. Read the book and ask your TA all the questions you have. Good luck.
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