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Johann Rahn[1] (Latinised form Rhonius) (10 March 1622 – 25 May 1676) was a Swiss mathematician who is credited with the first use of the division sign, ÷ (a repurposed obelus variant)[2] and the therefore sign, ∴.[3] The symbols were used in Teutsche Algebra, published in 1659. John Pell collaborated with Rahn in this book, which contains an example of the Pell equation. It is uncertain whether Rahn or Pell was responsible for introducing the symbols.
R. Acampora Johann Heinrich Rahn und seine Teutsche Algebra, in R. Gebhardt (Herausgeber) Visier- und Rechenbücher der frühen Neuzeit, Schriften des Adam-Ries-Bundes Annaberg-Buchholz 19, 2008, S. 163–178
Moritz Cantor: Rahn, Johann Heinrich . In: General German Biography (ADB). Volume 27, Duncker & Humblot, Leipzig, 1888, pp. 174 f
Noel Malcolm, Jacqueline Stedall John Pell (1611–1685) and His Correspondence with Sir Charles Cavendish: The Mental World of an Early Modern Mathematician, Oxford University Press, Oxford, 2005
Christoph ScribaJohn Pell's English Edition of J. H. Rahn 's Teutsche Algebra, in: R. S. Cohen (Herausgeber) For Dirk Struik, Reidel: Dordrecht 1974, S. 261–274
Jacqueline StedallA Discourse Concerning Algebra: English Algebra to 1685, Oxford University Press, Oxford, 2002
Cajori, Florian. A History of Mathematical Notations. 2 volumes. Lasalle, Illinois: The Open Court Publishing Co., 1928–1929 vol. 2, page 211.
citations
^Lawrence Barnett Phillips (1871). The Dictionary of Biographical Reference: Containing One Hundred Thousand Names, Together with a Classed Index of the Biographical Literature of Europe and America. S. Low, Son, & Marston. p. 775.
^Johann H. Rahn (1659). Teutsche Algebra. J.J. Bodmer. p. 16.
^Johann H. Rahn (1659). Teutsche Algebra. J.J. Bodmer. p. 53.
This article about a Swiss scientist is a stub. You can help Wikipedia by expanding it.
johann, rahn, this, article, expanded, with, text, translated, from, corresponding, article, german, july, 2013, click, show, important, translation, instructions, view, machine, translated, version, german, article, machine, translation, like, deepl, google, . This article may be expanded with text translated from the corresponding article in German July 2013 Click show for important translation instructions View a machine translated version of the German article Machine translation like DeepL or Google Translate is a useful starting point for translations but translators must revise errors as necessary and confirm that the translation is accurate rather than simply copy pasting machine translated text into the English Wikipedia Consider adding a topic to this template there are already 9 732 articles in the main category and specifying topic will aid in categorization Do not translate text that appears unreliable or low quality If possible verify the text with references provided in the foreign language article You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation A model attribution edit summary is Content in this edit is translated from the existing German Wikipedia article at de Johann Heinrich Rahn Mathematiker see its history for attribution You should also add the template Translated de Johann Heinrich Rahn Mathematiker to the talk page For more guidance see Wikipedia Translation Johann Rahn 1 Latinised form Rhonius 10 March 1622 25 May 1676 was a Swiss mathematician who is credited with the first use of the division sign a repurposed obelus variant 2 and the therefore sign 3 The symbols were used in Teutsche Algebra published in 1659 John Pell collaborated with Rahn in this book which contains an example of the Pell equation It is uncertain whether Rahn or Pell was responsible for introducing the symbols Johann Heinrich Rahn in 1656 Contents 1 Books 1 1 Literature 2 See also 3 ReferencesBooks EditTeutsche Algebra Johann H RahnLiterature Edit R Acampora Johann Heinrich Rahn und seine Teutsche Algebra in R Gebhardt Herausgeber Visier und Rechenbucher der fruhen Neuzeit Schriften des Adam Ries Bundes Annaberg Buchholz 19 2008 S 163 178 Moritz Cantor Rahn Johann Heinrich In General German Biography ADB Volume 27 Duncker amp Humblot Leipzig 1888 pp 174 f Noel Malcolm Jacqueline Stedall John Pell 1611 1685 and His Correspondence with Sir Charles Cavendish The Mental World of an Early Modern Mathematician Oxford University Press Oxford 2005 Christoph Scriba John Pell s English Edition of J H Rahn s Teutsche Algebra in R S Cohen Herausgeber For Dirk Struik Reidel Dordrecht 1974 S 261 274 Jacqueline Stedall A Discourse Concerning Algebra English Algebra to 1685 Oxford University Press Oxford 2002See also EditHistory of mathematical notationReferences EditgeneralCajori Florian A History of Mathematical Notations 2 volumes Lasalle Illinois The Open Court Publishing Co 1928 1929 vol 2 page 211 citations Lawrence Barnett Phillips 1871 The Dictionary of Biographical Reference Containing One Hundred Thousand Names Together with a Classed Index of the Biographical Literature of Europe and America S Low Son amp Marston p 775 Johann H Rahn 1659 Teutsche Algebra J J Bodmer p 16 Johann H Rahn 1659 Teutsche Algebra J J Bodmer p 53 This article about a Swiss scientist is a stub You can help Wikipedia by expanding it vte This article about a European mathematician is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Johann Rahn amp oldid 1085474453, wikipedia, wiki, book, books, library,
