Cavalieri, Buonaventura, Geometria indivisibilibvs continvorvm : noua quadam ratione promota
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392372GEOMETRIE G, ideò omnia quadrata, AF, demptis omnibus quadratis hyper-
bolæ, DNF, ad omnia quadrata, SF, demptis omnibus quadra-
tis fruſti, HDFG, habebunt rationem compoſitam ex ea, quam
habet rectangulum ſub compoſita ex {1/2}:
ON, & {2/3}. NE, & ſub, N
E, ad rectangulum, NEO, &
ex ea, quam habet, NE, ad, EM,
&
ex ea, quam habent omnia quadrata, SF, ad omnia quadrata,
268[Figure 268] SF, demptis omnibus quadratis fruſti, HD
FG.
Quoniam autem omnia quadrata,
SF, ad omnia quadrata fruſti, HDFG, sũt
vt rectã gulum, OEN, ad rect.
ſub OE, NM,
cum'rectãg.
ſub compoſita ex {1/2}. ON, & {1/3}.
ME, & ſub, ME, ideò oĩa quadrata, SF, ad
reſiduum, daptis omnibus quadratis fruſti,
HDFG, erunt vt rectangulum, OEN, ad
reſiduum, demptis à rectangulo, OEN, re-
113. huius. ctangulo, ſub, OE, NM, vna eum rectan-
gulo ſub compoſita ex {1/2}.
ON, & {1/3}. ME,
&
ſub, ME; ſi igitur à rectangulo, OEN,
dempſeris rectangulum ſub, OE, MN, re-
manebit rectangulum ſub, OE, EM, rur-
ſus ſi à rectangulo ſub, OE, EM, dempſeris rectangulum ſub com-
poſita ex {1/2}.
ON, & {1/3}. ME, & ſub, ME, . i. ſi dempſeris rectangu-
lum ſub, OB, &
, ME, remanebit rectangulum ſub, BE, EM, à quo
ſi adhuc auferas rectangulum ſub {1/3}.
ME, & ſub, ME, . i. {1/3}. qua-
drati, ME, habebimus rectangulum, BEM, dempto {1/3}.
quadrati,
ME, ad quod rectangulum, OEN, erit vt omnia quadrata, SF, ad
ſui reliquum, demptis omnibus quadratis fruſti, HDFG, ergo om-
nia quadrata, AF, demptis omnibus quadratis hyperbolæ, DNF,
ad omnia quadrata, SF, demptis omnibus quadratis fruſti, HDF
G, habebunt rationem compoſitam ex his rationibus .
ſ. ex ea, quã
habet rectangulum ſub compoſita ex {1/2}.
ON, & {2/3}. NE, & ſub, NE,
ad rectangulum, OEN, &
ex ratione, NE, ad, EM, & ex ea, quam
habet rectangulum, OEN, ad rectangulum, BEM, dempto {1/3}.
qua-
drati, ME;
harum autem iſtæ duæ, quam . ſ. habet rectangulum
ſub compoſita ex {1/2}.
ON, & {2/3}. NE, & ſub, NE, ad rectangulum,
OEN, &
quam habet rectangulum, OEN, ad rectangulum, BEM,
dempto {1/3}.
quadrati, ME, conficiunt rationem rectanguli ſub com.
poſita ex {1/2}. ON, & {2/3}. NE, & ſub, NE, ad rectangulum, BEM
dempto {1/3}.
quadrati, ME, vel, his triplicatis, conficiunt rationem'
rectanguli ſub compoſita ex tribus, BN, .
ſ. ex, NX, & ter {2/3}. NE,
.
ſ. dupla, NE, . ſ. ſub compoſita ex, NE, & , EX, & ſub, NE, ad
rectangulum ſub tripla, BE, &
ſub, EM, demptis {3/3}. ideſt

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