(This is a pre-recorded message scheduled to automatically publish on the 1st October. If you’re reading this, I’m in Cambridge, probably either very busy with work, or very inebriated, or both. Here’s an emoticon which is also valid punctuation in this context:)

This is the first of five consecutive chapters chiefly concerned with geometry, mainly Euclidean. I’ve also mentioned finite projective planes, such as the Fano plane.

- Preface
- Combinatorics I (enumerative and geometrical combinatorics)
- Linear algebra
- Combinatorics II (graph theory)
- Polynomials
- Sequences
- Inequalities
- Projective geometry
- Complex numbers
- Triangle geometry
- Areal coordinates
- The Riemann sphere
- Diophantine equations
- Conic sections
- Glossary
- Further reading
- Acknowledgements