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William Oughtred (5 March 1574 – 30 June 1660), [1] also Owtred, Uhtred, etc., was an English mathematician and Anglican clergyman. [2] [3] [4] After John Napier discovered logarithms and Edmund Gunter created the logarithmic scales (lines, or rules) upon which slide rules are based, Oughtred was the first to use two such scales sliding by one another to perform direct multiplication and ...
decimal separator: 1593 ... 1618 William Oughtred: ... 1684 (deriving from use of colon to denote fractions, dating back to 1633) ...
Maximum accuracy for standard linear slide rules is about three decimal significant digits, while scientific notation is used to keep track of the order of magnitude of results. English mathematician and clergyman Reverend William Oughtred and others developed the slide rule in the 17th century based on the emerging work on logarithms by John ...
Oughtred Society Slide Rule Reference Manual (PDF). Oughtred Society. Archived (PDF) from the original on 26 April 2021. Harris, Charles Overton (1972). Slide Rule Simplified. Chicago: American Technical Society. ISBN 978-0-8269-2342-4. Young, Neville W. (1972). A Complete Slide Rule Manual. David M. Peterson. Archived from the original on 25 ...
Clavis mathematicae (English: The Key of Mathematics) is a mathematics book written by William Oughtred, originally published in 1631 in Latin.It was an attempt to communicate the contemporary mathematical practices, and the European history of mathematics, into a concise and digestible form.
According to George Sarton, "The Thiende was the earliest treatise deliberately devoted to the study of decimal fractions, and STEVIN's account is the earliest account of them. Hence, even if decimal fractions were used previously by other men, it was STEVIN – and no other – who introduced them into the mathematical domain.
In c. 1622, William Oughtred combined two handheld Gunter rules to make a calculating device that was essentially the first slide rule. [ 9 ] The logarithm function became a staple of mathematical analysis, but printed tables of logarithms gradually diminished in importance in the twentieth century as multiplying mechanical calculators and ...
William Oughtred (1575–1660), inventor of the circular slide rule. A collection of slide rules at the Museum of the History of Science, Oxford. The slide rule was invented around 1620–1630, shortly after John Napier's publication of the concept of the logarithm.