William Jones, FRS (1675 – 1 July 1749) was a Welsh mathematician, most noted for his use of the symbol π (the Greek letter Pi) to represent the ratio of the circumference of a circle to its diameter. He was a close friend of Sir Isaac Newton and Sir Edmund Halley. In November 1711 he became a Fellow of the Royal Society, and was later its vice-president.
Born |
William Jones 1675 Llanfihangel Tre'r Beirdd, Isle of Anglesey
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Died |
3 July 1749 (aged 74) London, England
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