He tries really hard but his accent is so hard to understand, and he's not the best at explaining thins- personally I think he spent too much time on basic vector math and not much time on the harder concepts. Tests are fair, but hard. HW is optional but helpful, and there are weekly quizzes in discussion that I personally liked cause it made sure I kept up with the material. I would avoid if you're looking for an easy class but it's not absolutely horrible, he really does care about the students and he tries to answer all questions and make sure you understand.

Das was an ok professor, but he was difficult to understand. His accent made things confusing and his handwriting was often hard to read so half the class was just trying to figure out what he was saying. The overall material isn't too bad, except for the last few weeks. There were weekly quizzes in discussion section, so they were mandatory to go to, and they ended up killing my grade. The homework wasn't too bad, just weekly problem sets from the textbook. The tests were rather difficult, I recall them being time consuming and hard to finish. Overall, this was not my favorite math class, especially because of the quizzes.