Privacy & Cookies: This site uses cookies. By continuing to use this website, you agree to their use.
To find out more, including how to control cookies, see here: Cookie Policy
To find out more, including how to control cookies, see here: Cookie Policy
More from Chalkdust
Chalkdust dissertation prize
Calling all final-year students!The big argument: What’s the best way to end a proof?
QED or $\square$?An odd card trick
Michael Wendl dissects some variants of the magic separation, a self-working card trick.Striking the right chord
How big are these random shapes? Submit an answer for a chance to win a prize!Thinking outside the box
Negative polygons and other mathematical creationsThe joys of the Jacobian
Robert Smith? tells us how his favourite matrix saves lives