Moral transgressions, as identified by trigonometry teachers.
The Seven Deadly Sin(e)s
Author: Ben Orlin
Your digit-swapping birthday.
A mathematical riddle.
dAlice/dt in Wonderland
A lost passage from Lewis Carroll.
Books I Loved in 2021 (first half)
Fifteen very good books.
Road Signs for Mathematics
Speed required. Nondifferentiability subject to fine.
“Simplifying” is subjective. Also, crucial.
The ancient battle of "weird" vs. "weird, but not wrong."
If Fermat Had Wider Margins
And other math cartoons.
Kafka Explains Math Education
A few cheery thoughts.
Advice for snobs.
Snobbery without the snobbery.
When a trillion dice are no better than a dozen.
A lesson from a mindless game.