John Caulfield Hannyngton
John Caulfield Hannyngton (7 March 1807 – 1885 or 1886) was a British military commander, actuary and mathematician. He is remembered as inventor of a slide rule of previously unattainable precision.
John Caulfield Hannyngton (7 March 1807 – 1885 or 1886) was a British military commander, actuary and mathematician. He is remembered as inventor of a slide rule of previously unattainable precision.