John D Cook recently had a post on his blog about a Stack Overflow thread about some interesting patterns in the Gaussian primes. I had gotten really interested in Gaussian primes after reading Martin Weissman’s wonderful book, so I knew I needed to make an interactive toy to play with the patterns. Since I’d just been doing this project in SVG & React, I used those. The result is here. I also deployed it to this github page so you can play with it too.