Week 58: Fixed-point approximation
I went to give blood for the first time in a while. It was a lovely day for a cycle ride into the City of London, and I didn’t even need a hat or scarf. (It didn’t last: the temperature dropped significantly a day later.) It was my first donation since a brief spell of anaemia last year, but my haemoglobin levels were very good this time, and it all went fine.