Apollonius <Pergaeus>, Apollonii Pergaei Conicorvm Lib. V. VI. VII. paraphraste Abalphato Asphahanensi : nunc primum editi ; additvs in calce Archimedis assvmptorvm liber, ex codibvs arabicis mss Abrahamus Ecchellensis Maronita latinos reddidit, Jo. Alfonsvs Borellvs curam in geometricis versione contulit & [et] notas vberiores in vniuersum opus adiecit

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424Apollonij Pergæi mentum axis D B ad D R, & compleatur
parallelogrãmum rectãgulum B R, tunc ſpa-
tium B R vocatur Exemplar.
Pari ratione
ſi, vt G B ad D P ità fiat ſegmentum axis
D K ad latitudinem K S, compleaturque
parallelogrammum rectangulum D S, voca-
bitur paritèr D S Exemplar.
4[Figure 4]
X. Et ſi C D perpendicularis fuerit ad
axim B D, &
producatur vltrà axim in
E, atquè à puncto E extendantur vſquè ad
ſectionem rectæ lineæ E B, E F, E G, vo-
cabitur E punctum Concurſus.
XI. Et lineæ rectæ E B, E F, E G vo-
cantur etiam Rami.
5[Figure 5]
VII. Atquè linea recta E F ſecans axim
in H vocatur Ramus ſecans.
XIII. Et recta linea E B conueniens
cum axi in vertice ſectionis vocatur Ra-
mus terminatus.
XIV. Si verò rami ſecantis E F por-
tio cius H F inter ſectionem, &
axim in-
tercepta fuerit breuiſsima omnium linea-
rum, quæ ex puncto H ad ſectionem duci
poſſunt, tunc ramus E F vocabitur Breui-
ſecans.
In textu Arabico ſecans ramus vo-
cabatur, mendosè, vt arbitror, non enim
hæc definitio diſtingueretur à duodecima,
definitione.
6[Figure 6]
XV. Similitèr ſegmentum axis D B ſe-
ctum à perpendiculari ad axim ex origine
E ducta, vocatur quoquè Menſura.
XVI. Tandem ſi per punctum originis
D, vel concurſus E ducatur ordinata A C,
tunc figura contenta ab ordinata A C, &

ſectione conica A B C, vocatur Segmentum
illius puncti.

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