Tired of hearing people ask which area of maths is your favourite? Get one of these tattooed on your forehead and you’ll never be asked again…
More from Chalkdust
- Surprise yourself by making this thing
- Print it out and play against your friends!
- Win £100 of Maths Gear goodies by solving our famously fiendish crossnumber
- Are you perfect or imaginary? Are you a square?
- Village fetes, Brexit and flowers are among the topics of discussion in this issue's Dear Dirichlet advice column
- The definitive chart of the best units