This is essentially a math class so the easiness/difficulty depends on your ability to grasp and apply new math concepts quickly. That being said, Ms. Fragouli is very good lecturer as every class had a logical and organized progression of topics. As long as you attend most lectures, take good notes, and do the homeworks, you should have no problems passing this class. She also essentially wrote everything that we had to learn on the board (no books needed). That being said, getting an A might be not be so easy. Her exams are math heavy in the sense that there's usually proving involved.

Overall, great lecturer, not hard to pass, but don't expect an easy A.

Professor Fragouli's lecture is very clear and explanatory. The lecture is mainly composed of proofs so her class demands a good background in calculus. From homework and exams point of view, there is a little gap between lecture and homework, that by mean the homework and exams are very tough compared to lectures; however, understanding the lecture is very vital to do the homework and the exam so if you have anything you do not understand better to ask in the class she is very welcome answering questions. Doing project is very helpful to boost your grade since it is a bonus. As overall, professor Fragouli's class is very rewarding at the end of the quarter if you have been working hard.

Fragouli is pretty straightforward with her teaching style and the material she covers. Although there can be some tricky questions, there's nothing unfair about her tests or the class in general.