- The story of a controversial replica calculating machine based on a sketch in a ‘misplaced’ manuscript by Leonardo is told on a page devoted to the sketch in the Madrid Codex
- The Calculating Machines Web site has a lot of information on the operating principles of mechanical calculators as well as some interactive demos
- The history of Maths has been tied up with the history of calculating devices. I was using a slide rule before the modern scientific calculator became available. The main thing is that you know what you are calculating, and can estimate the likely size of the answer.
This entry was posted on Wednesday, August 24th, 2005 at 24/08/05 and is filed under Maths.
