Getting Sieves Right

The great thing about being wrong is that you get to learn something. In a previous post I went on at length about the the sieve of eratosthenes. Now that I have been enlightened by Melissa O'Neill I must make corrections.

CodeMesh 2013 Redux

Last month I attended the CodeMesh conference here in sunny London, along with a couple of my colleagues. Here are my recollections and thoughts. The venue (Hotel Russel on Russel Square) is a pleasantly rambling, grand old hotel, which hosted a few hundred hardcore geeks fairly well. A couple of the rooms were a bit small and…