William Oughtred (nonfiction): Difference between revisions
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File:Galileo Galilei.jpg|link=Galileo Galilei|1615: Mathematician and crime-fighter [[Galileo Galilei]] prevents alleged supervillain [[Anarchimedes]] from assassinating mathematician [[William Oughtred (nonfiction)|William Oughtred]]. | |||
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Revision as of 08:59, 4 March 2018
William Oughtred (5 March 1574 – 30 June 1660) was an English mathematician and Anglican minister.
After John Napier invented logarithms and Edmund Gunter created the logarithmic scales (lines, or rules) upon which slide rules are based, it was Oughtred who first used two such scales sliding by one another to perform direct multiplication and division; and he is credited as the inventor of the slide rule in 1622.
Oughtred also introduced the "×" symbol for multiplication as well as the abbreviations "sin" and "cos" for the sine and cosine functions.
In the News
1615: Mathematician and crime-fighter Galileo Galilei prevents alleged supervillain Anarchimedes from assassinating mathematician William Oughtred.
Fiction cross-reference
Nonfiction cross-reference
External links:
- William Oughtred @ Wikipedia
Attribution: