Issue 13 was released on 1 May 2021. Enjoy the articles online or scroll down to view the magazine as a PDF.
To celebrate the launch of Issue 13, we encouraged readers to make some art inspired by cellular automata. Read more here.
Features
In conversation with Ulrike Tillmann
Sophie Maclean and David Sheard speak to a very top(olog)ical mathematician!
On conditional probability: Cards, Covid, and Crazy Rich Asians
Madeleine Hall explores the sometimes counterintuitive consequences of conditional probability to our everyday lives.
The maths of Mafia
Sophie explores the fascinating mathematics behind the games Mafia and Among Us.
Who is the best England manager?
Paddy Moore levels the score
How to be the least popular American president
Francisco Berkemeier takes a look at the mathematics behind elections, and the Electoral College, in the United States of America.
On the cover: cellular automata
Discover the meaning of the coloured squares on the cover of issue 13
Significant figures: John Conway
The story of an unforgettable mathematician.
Surfing on wavelets
Johannes Huber explores the maths behind how image compression works.
Diagrammatic algebra: On the road to category theory
Aryan Ghobadi gives a maths lecture at a zoo
Fun
The big argument: Is the Einstein summation convention worth it?
We hear arguments for and against this controversial convention
Top ten vote issue 13
Have your say
What’s hot and what’s not, Issue 13
Fashion is fleeting, Chalkdust regulars are not.
Which number system are you?
Are you binary? Roman numerals? The decimals? Find out by answering a maximum of ∞ easy questions
Dear Dirichlet, Issue 13
Parishoners, partners and puzzled playwrights have written in to the professor's postbox this issue
Prize crossnumber, Issue 13
£100 of Maths Gear goodies to be won if you can solve it
Page 3 model: Cows
How big is the biggest cow?Top Ten: Calculator buttons
The definitive chart of the best buttons
Cryptic crossnumber (including hints)
Looking for a challenge? Try our cryptic crossnumber—with hints and tips so anyone can have a go!
Printed versions
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