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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[Item 1.]
[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
[5.] IO: ALFONSVS BORELLVS
[6.] AD SERENISSIMVM COSMVM III. ETRVRIÆ PRINCIPEM FLORENTIÆ, Ex Typographia Ioſephi Cocchini ad inſigne Stellæ MDCLXI. SVPERIORVM PERMISSV.
[7.] COSMVM TERTIVM ETRVRIÆ PRINCIPEM. 10: AL FONSVS BORELLIVS F.
[8.] CAVE CHRISTIANE LECTOR.
[9.] IN NOMINE DEI MISERICORDIS MISERATORIS. PROOE MIVM ABALPHATHI FILII MAHMVDI, FILII ALCASEMI, FILII ALPHADHALI ASPHAHANENSIS. LAVS DEO VTRIVSQVE SECVLI DOMINO.
[10.] ABRAHAMI ECCHELLENSIS IN LATINAM EX ARABICIS Librorum Apollonij Pergæi verſionem PRÆFATIO.
[11.] PRÆFATIO AD LECTOREM.
[12.] INDEX
[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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page |< < (274) of 458 > >|
312274Apollonij Pergæi cum quadrato D B, quod eſt æquale ipſi A D in A F; igitur eſt æqua-
le ipſi F D in D A.
Quod erat oſtendendum.
PROPOSITIO V. & XXIII.
IN parabola A B C cuiuſcumque diametri B F erectus B H ex-
cedit axis A D erectum A E quadruplo abciſſæ A D potentis
à termino illius diametri ad axim ductæ 23.
& diametri C G, re-
11a motioris ab axe, erectus C I maior eſt erecto B H diametri propin-
quioris B F quadruplo differentiæ axis abſciſſarum potentium à
terminis diametrorum ad axim ductorum.
360[Figure 360]
Educamus A L, B K tangentes in A, B, & B N perpendicularem ad
B K, erit K D in D N æquale quadrato D B, quod eſt æquale ipſi A E
2211. lib. 1. in A D;
ergo K D ad D A eandem proportionem habet, quàm A E ad
D N:
eſtque D K dupla ipſius A D (37. ex 1.) igitur A E eſt dupla
3335. lib. 1. ipſius D N;
quarè A E cum duplo D K, nempe cum quadruplo A D eſt
44b æqualis duplo K N, nempe B H (eo quod N K ad B K tangentem ean-
dem proportionem habet, quàm aſſumpta M B ad B L coniugatam (57.
5544. lib. 1. ex 1.) (propter ſimilitudinem duorum triangulorum); ergo B H æqualis
eſt quadruplo A D cum A E;
quarè erectus diametri B F excedit A E
quadruplo A D.
& A O maior eſt, quàm A D; ergo erectus diametri
66c C G remotioris maior eſt, quàm erectus B F proximioris quadruplo D
O differentiæ abſciſſarum.
Et hoc erat oſtendendum.
Notæ in Propoſit. I.
QVia quadratum A B eſt æquale quadrato D A, & c. Quoniam re-
77a ctangulum F D A æquale eſt rectangulo F A D ſubſegmentis vna cum
quadrato reliqui ſegmenti D A;
eſtque latus rectum A E

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