Project icon: lavishly furnished initial letter with a painting of Ptolemy using an astrolab.

Ptolemaeus

Arabus et Latinus

Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ σ ς τ υ φ χ ψ ω
The following characters have a special meaning.
Put them next to a word without a space between.
" "encloses a sequence of words so that the sequence is searched as a whole.
+The following word must appear.
-The following word must not appear.
~The following word should not appear but may appear.
<The following word should appear but is not as relevant as other words.
>The following word should appear and is more relevant than other words.
( )groups words together so that one of the prefixes above can be applied to the whole group.
*is a wildcard behind a word, representing null, one or several arbitrary characters.

Work C.1.13

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.

Ed. ---

MSS

Brussels, BR, 1022-1047, s. XV, f. 184v-197v  Images

Brussels, BR, 2962-2978, s. XV-XVI, f. 211v-212r