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  2. William Oughtred - Wikipedia

    en.wikipedia.org/wiki/William_Oughtred

    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 ...

  3. Clavis mathematicae - Wikipedia

    en.wikipedia.org/wiki/Clavis_mathematicae

    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.

  4. Slide rule - Wikipedia

    en.wikipedia.org/wiki/Slide_rule

    In c. 1622, William Oughtred of Cambridge combined two handheld Gunter rules to make a device that is recognizably the modern slide rule. [15] Oughtred became involved in a vitriolic controversy over priority, with his one-time student Richard Delamain and the prior claims of Wingate. Oughtred's ideas were only made public in publications of ...

  5. History of logarithms - Wikipedia

    en.wikipedia.org/wiki/History_of_logarithms

    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.

  6. Slide rule scale - Wikipedia

    en.wikipedia.org/wiki/Slide_rule_scale

    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 ...

  7. Richard Delamaine - Wikipedia

    en.wikipedia.org/wiki/Richard_Delamaine

    His earliest published work Grammelogia was dedicated to Charles I.It was attacked in William Oughtred's Circles of Proportion (1631), on grounds of plagiarism: Oughtred had taught Delamaine, and considered that the work simply reproduced his mathematical instruments without any serious understanding of the theory on which they depended. [1]

  8. The Saxon Stories - Wikipedia

    en.wikipedia.org/wiki/The_Saxon_Stories

    When he was 58, Cornwell met his birth father, William Outhred (or Oughtred), for the first time while on a book tour in Vancouver, Canada. [2] There was a family tree going back to the 6th century. [2]

  9. History of computing hardware - Wikipedia

    en.wikipedia.org/wiki/History_of_computing_hardware

    William Oughtred greatly improved this in 1630 with his circular slide rule. He followed this up with the modern slide rule in 1632, essentially a combination of two Gunter rules , held together with the hands.