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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398359Conicor. Lib. VII. terius homologæ diametri, atque differentia quadrati axis ab
eius figura maior erit ſemidifferentia quadratorum duorum late-
rum figuræ ſuæ homologæ, &
minor erit integra differentia eo-
rundem quadratorum.
In fectione A B N ſit axis A C maior in figura prima, & in ſecunda
minor, ſintquè I L, P Q duæ aliæ diametri, quæ in ellipſi cadant inter
axim, &
vnã æqualium; ducanturque duæ ordinationes A B, A N ad
11b diametros I L, P Q, &
duas ad axim perpendiculares B E, N M; ſit-
que A F erectus ipſius A C, &
A G, C H duæ interceptæ: ponaturque
in ellipſi X D æqualis E D, habebit E H ad H A minorem proportio-
22c nem in prima hyperbola, &
maiorem in reliquis, quàm E D ad D A,
ſeu quàm E X, quæ eſt ſumma in hyperbola, &
differentia in ellipſi
ipſarum E G, &
E H ad A C differentiam ipſarum H A, A G; & qua-
468[Figure 468] dratum A C in omnibus figuris ad differentiam quadratorum A C, &

A F eandem proportionem habet, quàm quadratum A H ad differentiam
duorum quadratorum A H, &
G A: atque E H ad H A minorem pro-
portionem habet in duabus primis figuris, &
maiorem proportionem in
duabus ſecundis, quàm E G ad G A, comparando homologorum ſum-
mas, erit E H ad H A, vt E H cum E G ad H A cum G A, nempe ag-
gregatum E H, E G in earundem differentiam ad aggregatum H A, A
G in earundem differentiam, quod eſt æquale differentiæ duorum qua-
dratorum E H, E G;
nempe quadratum A C ad differentiam quadrato-
rum duorum laterum figuræ I L minorem proportionem habet (in prima
ellipſi), &
maiorem (in ſecunda) quàm quadratum A H ad aggrega-
tum H A, A G in earundem differentiam, quod eſt æquale differentiæ
quadratorum H A, A G, nempe quadratum A C ad differentiam

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