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

< >
[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)
< >
page |< < (29) of 458 > >|
6729Conicor. Lib. V.
SECTIO SEPTIMA
Continens XXVI. XXVII. XXVIII. Propoſ.
Apollonij.
PROPOSITIO XXVI. & XXVII.
ANgulorum ab axi ſectionis A H, & à lineis breuiſſimis F
B, H G contentorum proximiores vertici ſectionis mi-
nores ſunt remotioribus, nempe angulus AFB minor eſt AHG.
44[Figure 44]
SIt itaque centrum D, & ſemi inclinatus axis A D, ſiue ſemitranſuer-
ſus, & dimidium erecti A C: educamus itaque duas perpendiculares
11a GL, BI, & ſi ſectio fuerit parabole, erit FI æqualis LH, quia quælibet
earum æqualis eſt A C (13. ex quinto) & L G maior eſt, quàm BI; an-
22b gulus igitur F minor quàm H; ſi verò ſectio fuerit hyperbole, aut ellipſis,
erit FI ad ID, vt HL ad LD, quia quælibet earum eſt, vt AC ad AD
33c (14. 15. ex quinto) & permutando, erit I D ad L D nempe B I ad M L,
44d vt I F ad L H, & anguli I, & L ſunt recti; igitur duo triangula BIF, M
L H ſunt ſimilia, ideoque angulus A H G maior eſt, quàm angulus A F
B, & hoc erat propoſitum.
PROPOSITIO XXVIII.
Hinc patet, lineas breuiſſimas ſibi occurrere ad partes axis
ſectionis.
QVia angulus AFB minor eſt, quàm angulus AHG; quare ſibi oc-
5526. 27. h.66e currunt ad partes F, H, & hoc erat oſtendendum.

Text layer

  • Dictionary

Text normalization

  • Original

Search


  • Exact
  • All forms
  • Fulltext index
  • Morphological index
Impressum