Quotable maths - Tufnel Jun 7, 2012 A selection of other posts Mar 4, 2019 Dictionary of Mathematical Eponymy: The Collatz Conjecture Nov 6, 2017 On the obelus Apr 19, 2017 Ask Uncle Colin: Parametric Second Derivatives Mar 13, 2013 Bringing out the big gnus: runs of coins subscribe via RSS