Quotable maths: Hofstadter Oct 4, 2012 A selection of other posts May 20, 2020 Ask Uncle Colin: Flipping Signs May 25, 2016 Ask Uncle Colin: Trigonometric craziness Mar 3, 2014 Logarithmic inequalities, and why I always used to get them wrong Jan 14, 2013 Lives of the Mathematical Ninja: Blaise Pascal subscribe via RSS