Quotable Maths: Knuth Dec 20, 2012 A selection of other posts Aug 8, 2016 An alternative proof of the $\sin(2x)$ identity Aug 3, 2016 Ask Uncle Colin: why does the normal distribution stop at $z=\pm 4$? Mar 11, 2013 How the mathematical ninja looks at sums Aug 8, 2012 Five ways to stop feeling self-conscious about drawing graphs subscribe via RSS