img16 - Chalkdust

Splitting the octahedron into 12 hexahedra

Enric is a PhD student at Imperial and UCL. He works mostly with singularities in differential geometry, AKA when smooth things become pointy. When he’s not in his office, you can usually find him cooking or playing board games.

In conversation with Jens Marklof
Bethany Clarke and Enric Solé-Farré chat to the professor and new president of the London Mathematical Society about academia, access and awards
On the cover: Apollonian packing
David Sheard explores the rich mathematics and history behind the Apollonian packing, and the cover of issue 11
Puzzles about partitions
Tricks and puzzles that provide an introduction to the world of partitions
Top Ten: Parts of a circle
The definitive chart of the circle's greatest parts
Do you have too many or too few friends?
Do we have a natural limitation on the number of friends that we have?
Puzzles on square grids
How to make Sudoku more interesting

More from Chalkdust

In conversation with Jens Marklof

On the cover: Apollonian packing

Puzzles about partitions

Top Ten: Parts of a circle

Do you have too many or too few friends?

Puzzles on square grids