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

Table of contents

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[31.] PROPOS. II.
Page: 43 (5)
[32.] PROPOS. III.
Page: 44 (6)
[33.] Notæ in Propoſitionem primam.
Page: 44 (6)
[34.] Notæ in Propoſitionem ſecundam.
Page: 45 (7)
[35.] Notæ in Propoſitionem tertiam.
Page: 45 (7)
[36.] SECTIO SECVNDA Continens propoſitiones IV. V. VI. Apollonij.
Page: 45 (7)
[37.] PROPOSITIO IV.
Page: 46 (8)
[38.] PROPOSITIO V. & VI.
Page: 46 (8)
[39.] Notæ in pro poſitionem quartam.
Page: 47 (9)
[40.] Notæ in propoſitionem quintam.
Page: 48 (10)
[41.] MONITVM.
Page: 50 (12)
[42.] LEMMA I.
Page: 51 (13)
[43.] LEMMA II.
Page: 52 (14)
[44.] LEMMA III.
Page: 53 (15)
[45.] LEMMA IV.
Page: 53 (15)
[46.] SECTIO TERTIA Continens VIII. IX. X. Propoſ. Apollonij.
Page: 54 (16)
[47.] PROPOSITIO IX. & X.
Page: 56 (18)
[48.] Notæ in Propoſitionem VIII.
Page: 57 (19)
[49.] Notæ in Propoſitionem IX. & X.
Page: 59 (21)
[50.] SECTIO IV. Continens Propoſit. VII. & XII. Apollonij.
Page: 62 (24)
[51.] NOTÆ.
Page: 63 (25)
[52.] SECTIO QVINTA Continens XI. Propoſit. Apollonij.
Page: 64 (26)
[53.] NOTÆ.
Page: 64 (26)
[54.] SECTIO SEXTA Continens Propoſit. XIII. XIV. XV. Apollonij.
Page: 65 (27)
[55.] NOTÆ.
Page: 66 (28)
[56.] SECTIO SEPTIMA Continens XXVI. XXVII. XXVIII. Propoſ. Apollonij. PROPOSITIO XXVI. & XXVII.
Page: 67 (29)
[57.] PROPOSITIO XXVIII.
Page: 67 (29)
[58.] NOTÆ.
Page: 68 (30)
[59.] LEMMA V.
Page: 68 (30)
[60.] LEMMA. VI.
Page: 69 (31)
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page |< < (109) of 458 > >|
147109Conicor. Lib. V. educuntur, tunc quidem circulus, cuius centrum eſt concurſus, radius vero mi-
nor maximo breuiſecantium, & maior duobus reliquis neceßariò ellipſin duobus
in locis ſecabit; & ideo duo tantummodo rami inter ſe æquales erunt.
SECTIO DECIMAQVINTA
Continens Propoſ. XXXXI. XXXXII.
XXXXIII. Apollonij.
PROPOSITIO XXXXI.
IN hyperhola angulus contentus à linea breuiſſima, & à men-
11a ſura minor eſt angulo compræhenſo à linea diſtante cum cõ-
tinente.
Sit hyberbole A B, eius axis D
134[Figure 134]22b C, linea breuiſſima B C, duo con-
tinentes D E, D F, & diſtantia ſit
A E, & dimidium erecti A G: Di-
co, angulum B C D minorem eſſe
angulo D E A. Educamus itaque
perdendicularem B H, & iungamus
B D, quæ ſecet A E in I. Quia.
D A ad A G eſt, vt D H ad H C
(14. ex 5.) & I A ad A D eſt, vt
339. huius. B H ad H D; ergo ex æqualitate,
I A ad A G, eandem proportionẽ
habebit, quàm B H ad H C, &
propterea E A ad A G, nempe D
A ad diſtantiam A E maiorẽ pro-
portionem habebit, quàm B H ad H C igitur angulus B C H minor eſt,
quàm D E A, quod erat oſtendendum.
PROPOSITO XXXXII.
IN parabola lineæ breuiſſimæ productæ occurrunt ſectioni ex
44a vtraque parte.
Quoniam breuiſſima eſt linea recta ſecans diametrum paraboles intra
ſectionem; & propterea ſectioni occurret ex vtraque parte (28. ex pr.)
5527 lib. 1.& hoc erat oſtendendum.

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