Mathematician:William Oughtred

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Mathematician

English mathematician credited with the invention of the slide rule.

Also credited with inventing a circular version although precedence for this was disputed with his student Richard Delamain.

Experimented with notations in his famously compact writings, inventing some new symbology which stuck, notably $\times$, $\sin$ and $\cos$.


His invention of $\times$ for multiplication came in for criticism from Leibniz for being too similar to the letter $x$. Leibniz's preference $\cdot$ is now widespread.


Nationality

English


History

  • Born: 5 March 1574, Eton, Buckinghamshire, England
  • Died: 30 June 1660, Albury, Surrey, England


Publications

  • 1631: Clavis Mathematicae
  • 1632: Circles of Proportion and the Horizontal Instrument
  • 1657: Trigonometrie


Sources