img15 - Chalkdust

An octahedron with one of the 16 tetra-
hedra removed

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
I’m counting on it
Joe Celko looks at four different abacuses used throughout history
Tupper’s self-referential formula
A hideous equation that hides beautiful images, and much (much) more besides...
How many quadratics factorise?
Write down a quadratic. What is the probability that it factorises? Paging Prof. Dirichet...
Switching sides in a matrix equation
Looking for a neat description of this useful matrix part-inverse
Crossnumber winners
Are you a winner?

More from Chalkdust

In conversation with Jens Marklof

I’m counting on it

Tupper’s self-referential formula

How many quadratics factorise?

Switching sides in a matrix equation

Crossnumber winners