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・ Johannes W. Rohen
・ Johannes Wagner Type Foundry
・ Johannes Wahlström
・ Johannes Walbaum
・ Johannes Waldemar Karsch
・ Johannes Wallmann
・ Johannes Wallmann (theologian)
・ Johannes Walther
・ Johannes Warnardus Bilders
・ Johannes Weber
・ Johannes Weineck
・ Johannes Weinrich
・ Johannes Weiss
・ Johannes Welsch
・ Johannes Weltzer
Johannes Werner
・ Johannes West
・ Johannes Westö
・ Johannes Widmann
・ Johannes Wiedewelt
・ Johannes Wieland
・ Johannes Wiese
・ Johannes Wilde
・ Johannes Wildner
・ Johannes Wilhelm Christian Dietrichson
・ Johannes Wilhelmus Maria Liesen
・ Johannes Wilhjelm
・ Johannes Willebrands
・ Johannes Willibrordus Maria Hendriks
・ Johannes Wilsing


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Johannes Werner : ウィキペディア英語版
Johannes Werner

Johann(es) Werner ((ラテン語:Ioannis Vernerus); February 14, 1468 – May 1522) was a German mathematician. He was born in Nuremberg, Germany, where he became a parish priest. His primary work was in astronomy, mathematics, and geography, although he was also considered a skilled instrument maker.
==Mathematics==
His mathematical works were in the areas of spherical trigonometry, as well as conic sections. He published an original work on conic sections in 1522 and is one of several mathematicians sometimes credited with the invention of prosthaphaeresis, which simplifies tedious computations by the use of trigonometric formulas, sometimes called Werner's formulas.〔Howard Eves, ''An Introduction to the History of Mathematics'', Sixth Edition, p. 309, Thompson, 1990, ISBN 978-0-03-029558-4.〕

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