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

Scan	Original
101	63
102	64
103	65
104	66
105	67
106	68
107	69
108	70
109	71
110	72
111	73
112	74
113	75
114	76
115	77
116	78
117	79
118	80
119	81
120	82
121	83
122	84
123	85
124	86
125	87
126	88
127	89
128	90
129	91
130	92

144106Apollonij Pergæi D N ſupra, & infra breuiſe-

130[Figure 130] cantem D C, ſecantes circulum
O C Q, in O, & Q, dummo-
do D G non ducatur infra D C
in primo caſu, nec ſupra D A
in ſecundo. Quoniam ramus D
A ſupremus duorum breuiſecan-
tium maximus eſt omnium ra-
morum cadentium ad periphe-
riam B A C; igitur D A maior
1172. huius. erit, quàm D F, & quàm D G;
ſunt verò D Z, & D γ æqua-
les eidem D A (cum ſint radĳ
eiuſdem circuli) ergo D Z ma-
ior eſt, quàm D F; pariterque
D γ maior eſt quàm D G: &
propterea duo quælibet puncta
Z, γ eiuſdem circuli Z A γ ca-
dunt extra coniſectionem B A
G; & ideo circulus Z A γ tan-
tummodo in puncto A coniſectio-
nem extrinſecus tangit.

Poſtea quia ramus D C infimus breuiſecantium eſt minimus omnium ramo-
rum cadentium ex D ad peripheriam A C N, ergo ramus D C minor eſt, quàm
2272. huius. D G, & quàm D N: ſunt vero D O, D Q æquales eidem D C (cum ſint radĳ
eiuſdem circuli) igitur D O minor eſt, quàm D G: pariterque D Q minor eſt,
quàm D N: quare quælibet duo puncta O, Q circuli O C Q hinc inde à puncto
C cadunt intra coniſectionem B C N, & ideo circulus O C Q intrinſecus con-
tingit coniſectionem in C, quod erat oſtendendum.

Si ad coniſectionem,
33PROP.
12.
Addit.

131[Figure 131] vel ad portionem qua-
drantis ellipſis B A C,
ex concurſu D duci non
poſsit, niſi vnicus tan-
tum breuiſecans D A,
atque centro D, interual-
lo D A circulus Z A γ
deſcribatur; Dico, om-
nium circulorum tangen-
tium eandem rectam li-
neam X A P (quàm
cõtingit quoque coniſectio
in A) vnicum eſſe

Page concordance

Text layer

Text normalization

Search

Scan	Original
101	63
102	64
103	65
104	66
105	67
106	68
107	69
108	70
109	71
110	72
111	73
112	74
113	75
114	76
115	77
116	78
117	79
118	80
119	81
120	82
121	83
122	84
123	85
124	86
125	87
126	88
127	89
128	90
129	91
130	92

Scan	Original
101	63
102	64
103	65
104	66
105	67
106	68
107	69
108	70
109	71
110	72
111	73
112	74
113	75
114	76
115	77
116	78
117	79
118	80
119	81
120	82
121	83
122	84
123	85
124	86
125	87
126	88
127	89
128	90
129	91
130	92

Scan	Original
101	63
102	64
103	65
104	66
105	67
106	68
107	69
108	70
109	71
110	72
111	73
112	74
113	75
114	76
115	77
116	78
117	79
118	80
119	81
120	82
121	83
122	84
123	85
124	86
125	87
126	88
127	89
128	90
129	91
130	92