Počet záznamů: 1

Prosthaphaeresis – a Forgotten Algorithm

  1. 1.
    0349415 - UIVT-O 2011 RIV CZ eng M - Část monografie knihy
    Porubský, Štefan
    Prosthaphaeresis – a Forgotten Algorithm.
    Kepler’s Heritage in the Space Age. 400th Anniversary of Astronomia Nova. Praha: Národní technické muzeum v Praze, 2010 - (Hadravová, A.; Mahoney, T.; Hadrava, P.), s. 63-77. Acta historiae rerum naturalium necnon technicarum, 10. ISBN 978-80-7037-193-0
    Grant CEP: GA AV ČR 1ET200300529
    Výzkumný záměr: CEZ:AV0Z10300504
    Klíčová slova: prostaphaeresis * multiplication algorithm * arithmetics of 16. century * trigonometry * Tycho Brahe * Paul Wittich * Johann Werner * Jost Buergi * Georg Joachim von Lauchen Rheticus * Nicolaus Copernicus
    Kód oboru RIV: BA - Obecná matematika

    Since the multiplication and division of large numbers is in general much more difficult to perform than addition and subtraction, various methods for reducing multiplication and division to the simpler operations of addition and subtraction were proposed to decrease the computational burden. One of the best-known such device is the use of logarithms. In this paper we summarize the history of a less known technique called prosthaphaeresis, which is based on the use of trigonometric formulas and trigonometric tables.
    Trvalý link: http://hdl.handle.net/11104/0189663