This is what you trained for! Dec 12, 2016 (Based on something that actually happened!) A selection of other posts Mar 27, 2017 How the Mathematical Ninja approximates $\ln(5)$ May 23, 2016 How to invert a $3 \times 3$ matrix Jan 6, 2016 Ask Uncle Colin: How can I beat my little sister? Mar 19, 2013 Core 4 basics revision quiz subscribe via RSS
