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John Napier
John Napier.jpg
John Napier (1550–1617)
Born 1550
Died 4 April 1617(1617-04-04) (aged 66–67)
Edinburgh, Scotland
Nationality Scottish
Alma mater University of St Andrews
Known for Logarithms
Napier's bones
Decimal notation
Scientific career
Fields Mathematician
Influenced Henry Briggs

John Napier (he also signed as Neper, and Nepair) 1550 – 4 April 1617) was a Scottish landowner, nicknamed "Marvellous Merchiston". He was a mathematician, physicist, and astronomer. He was the 8th Laird of Merchiston. His Latinized name was Ioannes Neper.

John Napier is best known as the discoverer of logarithms and Napier's constant. He also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics.

An 18th century set of Napier's Bones
Napier's 'bones' were used to find the products and quotients of numbers

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