Machin, John

Machin, John

▪ English mathematician
born 1680
died 1751

      English mathematician, notable for studies in finding the area of a circle. In 1706 he was the first to compute the value of the constant π (pi) to 100 decimal places. Machin's formula for π was adapted by others, including Euler, to extend his result. Machin was professor of astronomy at Gresham College, London (1713–51). He worked extensively on the lunar theory but with little success. Elected a fellow of the Royal Society (London) in 1710, he was its secretary (1718–47) and contributed papers to the Society's Philosophical Transactions. He was a member of the committee appointed in 1712 by the Royal Society to investigate the priority dispute between Isaac Newton and Gottfried Leibniz.

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Universalium. 2010.

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  • Machin — Machin, John, englischer Mathematiker u. Astronom des 18. Jahrh., Professor der Astronomie am Gresham Collegium. Er schrieb über die Bewegung des Mondes nach Newtons Principien, Lond. 1729 …   Pierer's Universal-Lexikon

  • John Machin — Pour les articles homonymes, voir machin. John Machin Naissance 1680 (Angleterre) Décès 9 juin 1751 (à 71 ans) Londres (Angleterre …   Wikipédia en Français

  • John Machin — Infobox Scientist name = John Machin box width = 300px |100px image width = 100px caption = John Machin birth date = 1680 birth place = England death date = 9 June 1751 death place = London, England residence = flag|England citizenship =… …   Wikipedia

  • John Machin — John Machin, (1680 9 de junio de 1751), fue un profesor astronomía en el Gresham College, Londres, es conocido por haber desarrollado una de las mejores formas conocidas para desarrollar una serie convergente para el cálculo de π en 1706 y que… …   Wikipedia Español

  • Machin — may refer to: * Alfred Machin, French film director * Alfred Machin (writer), British writer on social evolution * Arnold Machin, British designer ** Machin series of British stamps using his design ** Full list of machin stamps * Cerro Machín,… …   Wikipedia

  • Machin — se puede referir a: Arnold Machín, diseñador inglés y a las piezas postales con la efigie de la reina Elizabeth II. Antonio Machín, cantante cubano de boleros. Cerro Machín, volcán en Colombia. John Machin, profesor de astronomía. Luis Machín,… …   Wikipedia Español

  • Machin — ist der Familienname folgender Personen: John Machin (1680–1751), Astronom und Mathematiker Paul René Machin (1918–2003), französischer Dichter Machin bezeichnet außerdem: Cerro Machín, Vulkan in Kolumbien Machin (Ontario), Township in Ontario,… …   Deutsch Wikipedia

  • John Machin — (* 1680 in England; † 9. Juni 1751 in London) war ein Astronom und Mathematiker mit einer Professur am Gresham College in London. Er ist bekannt wegen seiner 1706 entdeckten arctan Formel für die Kreiszahl π , die mit Hilfe der Taylorentwicklung… …   Deutsch Wikipedia

  • Machin series — See the list of machin stamps .The Machin series of postage stamps is the main definitive stamp series in the United Kingdom, used since 5 June 1967. It is the second series to figure the image of Elizabeth II, replacing the Wilding… …   Wikipedia

  • Machin — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sur les autres projets Wikimedia : « machin », sur le Wiktionnaire (dictionnaire universel) Le machin est une pantonyme français désignant… …   Wikipédia en Français

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