Algorithms, Jeff Erickson's open-licensed algorithms text, is finally more-or-less complete and available in prepublication form at http://algorithms.wtf/ (via https://3dpancakes.typepad.com/ernie/2018/12/steal-this-book-1.html)
@11011110 Peculiar title, but cool-looking text!
A Mastodon instance for maths people. The kind of people who make \(\pi z^2 \times a\) jokes.
\) for inline LaTeX, and
\] for display mode.