aperiodical.com/2018/11/baking

It's a gingerbread replica of YBC 7289 (en.wikipedia.org/wiki/YBC_7289)! This Babylonian tablet shows a highly accurate sexagesimal representation of the square root of two, the diagonal of a unit square.

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.