Calvin McPhail-Snyder

Email: [username] [username] = cmcs.
Office: 1044 Evans
Office Hours: Wednesday 3-4:30, Friday 12-1


I am a third-year PhD student in the Mathematics Department at UC Berkeley. My advisor is Nicolai Reshetikhin. I graduated from the University of Virginia in 2015, and I passed my qualifying exam in August 2017.

You can find my CV here. It was created with Simple CV.


I am broadly interested in topology, mathematical physics, and representation theory. Many of these things are connected via "quantum topology." Some more specific topics are: knot invariants, tensor categories and/or (braided) monoidal categories, quantum groups, diagram algebras, topological quantum field theory.

This semester I'm organizing the GRASP student seminar. You can also find the webpage for Fall 2017 here.


Spring 2018
Math 53 (Multivariable Calculus)
Course website
Fall 2017
Math 55 (Discrete Mathematics)
Course website
Summer 2017
Math W53 (Online Multivariable Calculus)
Spring 2017
Math 53
Fall 2016
Math 53
Summer 2016
Math 53
I was the lead instructor for this course.
Spring 2016
Math 53
You can see the course webpage here, including some old quizzes.
Fall 2015
Math 10A (Methods of Mathematics: Calculus, Statistics and Combinatorics)

Are you a student who wants to do better on mathematics exams? If so, you may find this advice useful.

As an instructor, I am typically responsible for computing and entering final letter grades. After spending too much of my time wrangling with Excel spreadsheets at the end of the semester, I decided to write some Python to automate it for me. If you'd like to look at it or use it yourself, the code is hosted on GitHub. Comments are appreciated!


What is Lie algebra cohomology and why should you care? In the literature, there are two approaches to proving things like Levi decomposition and complete reducibility: detailed proofs without much intuition, or a mention of cohomology and a citation of a book on homological algebra. This document is an attempt at an intermediate approach.


I was a member of the Jefferson Literary and Debating Society while a student at UVA. Nowadays my non-mathematical pursuits are mostly restricted to playing mildly competitive ultimate (frisbee.)