Hi there. I'm a freshman majoring in Math.
Phone: (510)701-6940 Email: ruihan.xia@berkeley.edu
Feel free to reach out!
notes_h54.pdf This includes all the notes from lectures!
h54_hw.pdf This includes (almost) all of the homework solutions and practice quiz solutions.
practice_finals_.pdf This includes answers to practice finals and several extensions on drawing phase plane, cosine series and sine series, and more stuff.