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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[2.] APOLLONII PERGÆI CONICORVM LIB. V. VI. VII. & ARCHIMEDIS ASVMPTOR VM LIBER.

[3.] APOLLONII PERGÆI CONICORVM LIB. V. VI. VII. PARAPHRASTE ABALPHATO ASPHAHANENSI

[4.] ADDITVS IN CALCE ARCHIMEDIS ASSVMPTORVM LIBER, EX CODICIBVS ARABICIS M.SS. SERENISSIMI MAGNI DVCIS ETRVRIÆ ABRAHAMVS ECCHELLENSIS MARONITA

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[5.] IO: ALFONSVS BORELLVS

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[6.] AD SERENISSIMVM COSMVM III. ETRVRIÆ PRINCIPEM FLORENTIÆ, Ex Typographia Ioſephi Cocchini ad inſigne Stellæ MDCLXI. SVPERIORVM PERMISSV.

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[7.] COSMVM TERTIVM ETRVRIÆ PRINCIPEM. 10: AL FONSVS BORELLIVS F.

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[8.] CAVE CHRISTIANE LECTOR.

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[9.] IN NOMINE DEI MISERICORDIS MISERATORIS. PROOE MIVM ABALPHATHI FILII MAHMVDI, FILII ALCASEMI, FILII ALPHADHALI ASPHAHANENSIS. LAVS DEO VTRIVSQVE SECVLI DOMINO.

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[10.] ABRAHAMI ECCHELLENSIS IN LATINAM EX ARABICIS Librorum Apollonij Pergæi verſionem PRÆFATIO.

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[11.] PRÆFATIO AD LECTOREM.

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[12.] INDEX

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[13.] APOLLONII PERGAEI CONICORVM LIB. V. DEFINITIONES. I.

[14.] II.

[15.] III.

[16.] IV.

[17.] V.

[18.] VI.

[19.] VII.

[20.] VIII.

[21.] IX.

[22.] X.

[23.] XI.

[24.] XII.

[25.] XIII.

[26.] XIV.

[27.] XV.

[28.] XIV.

[29.] NOTÆ.

[30.] SECTIO PRIMA Continens propoſitiones I. II. & III. Apollonij. PROPOSITIO I.

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457Conicor. Lib. V. dente in hyperbola, & deficiente in ellipſi rectangulo F K H ſimile ei, quod la-
teribus recto, & tranſuerſo continetur, ſcilicet G A E, & eſt A F ſemiſsis la-
teris recti, igitur quadratum B G æquale eſt ſummæ in hyperbole, & differen-
tiæ in ellipſi rectanguli G A F bis ſumpti, & rectanguli F K H, quod eſt æqua-
le duplo trianguli F K H: ſed quadrilaterum A G H F æquale eſt aggregato in
hyperbola, & differentiæ in ellipſi rectanguli G A F, & trianguli F K H, ergò
quadratum B G æquale eſt duplo quadrilateri A G H F, ſeù diſſerentiæ triangu-
lorum D A F, & D G H.

11[Figure 11]

Notæ in Propoſitionem
ſecundam.

SEcunda propoſitio facilè ex prima deducitur;
nam, quando ordinata B G H I tranſit per cen-
trum D ellipſis; tunc tria puncta G, D, H conue-
niunt, & triangulum D G H euaneſcit, & ideò
differentia trianguli D A F, & trianguli D G H
nullum ſpatium habentis, erit triangulum ipſum
D A F.

Notæ in Propoſitionem
tertiam.

12[Figure 12]

IN tertia propoſitione ſimilitèr, quandò ordinata
B H G I cadit infrà centrum D ellipſis, tunc
ducta C L parallela ipſi A E, erunt duo triangula
D A F, & D C L æqualia inter ſe, cum ſint ſimi-
lia, & latera homologa D A, D C ſint æqualia,
quia ſunt ſemiaxes; proptereà differentia triangu-
lorum D G H, & D A F, ſeù D C L erit trapezium
C G H L, quod ſubduplum eſt quadrati ordinatæ
B G.

SECTIO SECVNDA

Continens propoſitiones IV. V. VI. Apollonij.

COmparata eſt minima ramorum egredientium ex ſua origine
(4) in parabola (5) & hyperbola (6) pariterque in ellipſi (ſi
comparata fuerit portio maioris duorum axium, & tunc maxi-
mus eſt reſiduum tranſuerſi axis.) Reliquorum verò

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