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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 ...
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.
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]
The book contains a double scale, logarithmic on one side, tabular on the other. In 1630, William Oughtred of Cambridge invented a circular slide rule, and in 1632 combined two handheld Gunter rules to make a device that is recognizably the modern slide rule.
On 5 March 2020, Cornwell announced on social media that the 13th book, War Lord, would be the final novel in the series. [5] Following is a list of the novels with their UK publication years. The Last Kingdom (2004) The Pale Horseman (2005) The Lords of the North (2006) Sword Song (2007) The Burning Land (2009) Death of Kings (2011) The Pagan ...
Virginia Woolf‘s “Orlando: A Biography” is a centuries-spanning tale of a nobleman who, after a slumber that runs through several nights, metamorphoses into a woman. Inspired by and ...
Benjamin Taylor has a thing for Willa Cather. This year, the 150th anniversary of her birth, he has written a passionate love letter to her in the form of a brief but illuminating biography.
Just before director Christopher Nolan’s upcoming “Oppenheimer” plants a fixed image of Ted Hall in the popular imagination, along comes Steve James’s sensitive, studious documentary “A ...