Ryan Joo Rui An

I am an undergraduate at the National University of Singapore (NUS), studying mathematics and computer science. You can reach me at ryan.joo.ruian@u.nus.edu.

This page collects projects, notes, and a few other things I have put on the internet.

Projects

Selected Topics in Undergraduate Mathematics, in progress
Mathematics Olympiad: A Guidebook, under construction
Different Sizes of Infinity, a poster I designed during my high school years.

Notes and Miscellany

I have taken notes for some courses at NUS, mostly mathematics and computer science, hosted on this GitHub repository. You can also find a list of all courses I have taken.