Work C.1.17
Paul of Gerresheim
Expositio practice tabule tabularum et propositionum Ptolomei pro compositione tabule sinuum et cordarum necessariarum
Text
‘(Brussels, BR, 1022-1047) Expositio practice tabule tabularum et propositionum Ptolomei pro compositione tabule sinuum et cordarum necessariarum, facta pro simplicibus per me Paulum de Gherisheym. Necessitatem et utilitatem tabule sinuum et cordarum astronomorum signifier Ptolomeus ostendit in prima dictione sui Almagesti — (196r) tabule sinuum et cordarum. Sequitur nunc ipsa tabula rectificata anno domini 1443.’
Content
An ‘expositio’ of Ptolemy’s tables and propositions on sines and chords (Almagest I.9), also using the enunciations of Almagesti minor I.1-6.
Origin
Written in 1443 by Paul of Gerresheim [Düsseldorf], who received his Master of Arts at the University of Cologne in 1440 and was elected rector of that university twice, in 1442 and 1470. He died in 1470 (see Manuscrits datés conservés en Belgique, III: 1441-1460, eds F. Masai, M. Wittek, Bruxelles-Gand, 1978, 20, no. 237).
Bibl.
R. Lorch, ‘Some Remarks on the Almagestum parvum’, in Amphora. Festschrift für Hans Wussing zu seinem 65. Geburtstag, eds S. S. Demidov, M. Folkerts et al., Basel-Boston-Berlin, 1992, 407-438: 422; H. Zepeda, The First Latin Treatise on Ptolemy’s Astronomy: The Almagesti minor (c. 1200), Turnhout, 2018, 108-109.
Ed.
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