Quotable maths: Hopper Aug 2, 2012 A selection of other posts Aug 26, 2020 Ask Uncle Colin: On the Mediant Jan 22, 2020 Ask Uncle Colin: A Strange Error Apr 25, 2018 Ask Uncle Colin: A Fractional Kerfuffle Nov 19, 2012 Secrets of the Mathematical Ninja: The magic of 0.7 subscribe via RSS