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The term "trigonometry" was derived from Greek τρίγωνον trigōnon, "triangle" and μέτρον metron, "measure". [3]The modern words "sine" and "cosine" are derived from the Latin word sinus via mistranslation from Arabic (see Sine and cosine § Etymology).
File:Trigonometry.pdf. ... distribute and/or modify this document under the terms of the GNU Free Documentation License, ... File history. Click on a date/time to ...
Khan Academy: Trigonometry, free online micro lectures; Trigonometry by Alfred Monroe Kenyon and Louis Ingold, The Macmillan Company, 1914. In images, full text presented. Benjamin Banneker's Trigonometry Puzzle at Convergence; Dave's Short Course in Trigonometry by David Joyce of Clark University; Trigonometry, by Michael Corral, Covers ...
Glen Robert Van Brummelen (born May 20, 1965) is a Canadian historian of mathematics specializing in the history of trigonometry and historical applications of mathematics to astronomy. He is president of the Canadian Society for History and Philosophy of Mathematics , [ 1 ] and was a co-editor of Mathematics and the Historian's Craft: The ...
An introduction to trigonometry; Benjamin Banneker's Trigonometry Puzzle at Convergence; Dave's short trig course; Trigonometric Delights, by Eli Maor, Princeton University Press, 1998. Ebook version, in PDF format, full text presented. Trigonometry by Alfred Monroe Kenyon and Louis Ingold, The Macmillan Company, 1914. In images, full text ...
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Pitiscus achieved fame with his influential work, Trigonometria: sive de solutione triangulorum tractatus brevis et perspicuus (Trigonometry: A short and clear treatise on the solution of triangles) which was printed as an appendix to work of Abraham Scultetus Sphæricorum libri tres methodice conscripti & utilibus scholiis expositi.
Axel Anthon Björnbo was one his students, who worked on spherical trigonometry of the Greeks and Arabs. In 1893-94 he also began to teach the history of mathematics. This would lead to his comprehensive survey of the history of trigonometry in two volumes, published in 1900/1903. He then took up writing a two-volume history of mathematics but ...