Its consistently cold in the winter here. When I moved here, I thought of that as a bad thing. But really it isn't: it guarantees many fun things:

I've been enjoying watching videos from "The Coding Train", which covers a lot of different programming topics, including Mastodon! (
Strangely addictive because the presenter is so enthused.

Interactive demo of using Newton's method in the complex plane with a cubic. Its a little slow, any ideas for improvements are welcome:

Numerous historical places in China that I visited recently were adorning their renovated cement handrails with cuboctahedra. I asked a few Chinese math professors and none of them had any idea why, and did not think they had any historical significance. I'm still curious if there is some interesting background info here.


A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.

Use \( and \) for inline LaTeX, and \[ and \] for display mode.