Links

• Nottingham’s School of Mathematical Sciences.
• Bielefeld’s wonderful Tiling Encyclopedia.
• The London Mathematical Society.
• The Transpennine Topology Triangle.
• Astronomy picture of the day.
• Haskell is an interesting purely functional programming language, with design informed by category theory: it has functors, theorems for free and monads.
• Hugo was used to build this page, using the Academic theme.
• Detexify — scribble a symbol to get LaTeX code for it (or, quite often, discover that your desired symbol probably doesn’t exist).