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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262224Apollonij Pergæi Protorum coincidentium, vel propinquiorum, ad oppoſitas partes citra axim G A,
ſumantur
duo puncta C, T, &
ab cis ducantur ad axim rami breuiſſimi O C,
Q
T ſecantcs externam ſectionem in F, V, &
ab occurſu, vel communi asym-
ptoto
, vel ab asymptotis vicinioribus I K, M N magis recedat A G, quàm C F,
&
C F, quàm T V; Dico G A maiorem eſſe, quàm C F, & C F maiorem,
quàm
T V.
Ducantur interceptæ F a parallela G A, & V b parallela C F.
308[Figure 308] Et quia in parabola F a propinquior eſt occur ſui ſectionum, & parallela eſt dia-
11Poſtr. pars
pr
. 4. add.
huius
.
metro G A;
at in hyperbola F a parallela eſt axi G A, vel D Y diuidenti an-
gulum
M I H, &
F a vlterius tendit ad partes asymptoti I K, quàm G A; ergo
22Pars 3. F a minor eſt, quàm G A:
eſtque C F productio rami breuiſſiimi minor quàm
33prop. 3.
addit
.
huius
.
F a;
ergo A G maior erit, quàm C F. Eodem ratiocinio oſtendetur C F maior,
quàm
T V.
4438. lib. 5.
Secundò angulus Y D A ſit acutus in parabolis, at in hyperbolis minor ſe-
mirecto
, &
M I H ab asymptoto I H, & recta linea centra coniungente con-
tentus
ſit acutus:
Manifeſtum eſt duci poſſe ramum breuiſſimum, vt O B ad ſe-
55Propoſ. 6.
addit
.
huius
.
ctionem interiorem A B, qui parallelus ſit rectæ lineæ D A vertices coniungenti,
vel
I M centra coniungenti;
& ex vtraque parte ipſius rami O B præter axim
A
G ducantur quilibet breuiſſimi rami Q P, d e, i l, O C, qui ſecent exter-
668. 9. & 10.
lib
. 5.
nam peripheriam in R, f, m, F.
Oſtendendum modò eſt in eiſdem coniſectio-
nibus
E B eſſe diſtantiam omnium maximam, &
R P propinquiorem maximæ
maiorem
eſſe remotiore f e;
pariterque m l maiorem eſſe quàm G A. Ducantur
interceptæ
R g, m n parallelæ E B, &
f h parallela R P, nec non G S paral-
lela
m l, &
F a parallela G a. Quoniam interceptæ R g, m n parallelæ ſunt
eidem
E B, &
recta linea D A vertices coniungens, vel I M centra coniun-
77Propoſ. 5.
addit
.
huius
.
gens parallela facta fuit eidem E B;
ergo E B, R g, m n erunt omnes inter
ſe
æquales;
eſtque R P minor, quàm R g; pariterque m l minor, quàm m n,
8838. lib. 5. quia iliæ ſunt productiones breuiſſimorum ramorum Q P, &
i l; igitur quæ-
libet
diſtantia R P, vel l m ex vtraque parte ipſius E B ſumpta minor eſt,
quàm
E B;
ideoque E B erit omnium maxima. Deinde quia O B parallela eſt
A
D, vel M I, &
rami breuiſſimi O B, Q P ſe ſecant vltra axim A O; ergo
recta
linea R P Q producta ſecabit quoque reliquam parallelarum D A, vel
9938. lib. 5.

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