There are two types of mathematician in the world: those who like to include the current year in their exercises/examples/puzzles and those who don't.

@ccppurcell There are two types of students: those who notice that the year number in the test question has changed since last year's test, and...

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.