Cavalieri, Buonaventura, Geometria indivisibilibvs continvorvm : noua quadam ratione promota

Table of contents

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[331.] THEOREMA XVI. PROPOS. XVII.
[332.] COROLLARIVM I.
[333.] COROLLARIVM II.
[334.] THEOREMA XVII. PROPOS. XVIII.
[335.] COROLLARIVM.
[336.] THEOREMA XVIII. PROPOS. XIX.
[337.] COROLLARIVM.
[338.] THEOREMA XIX. PROPOS. XX.
[339.] COROLLARIVM.
[340.] THEOREMA XX. PROPOS. XXI.
[341.] COROLLARIVM.
[342.] THEOREMA XXI. PROPOS. XXII.
[343.] THEOREMA XXII. PROPOS. XXIII.
[344.] THEOREMA XXIII. PROPOS. XXIV.
[345.] THEOREMA XXIV. PROPOS. XXV.
[346.] THEOREMA XXV. PROPOS. XXVI.
[347.] THEOREMA XXVI. PROPOS. XXVII.
[348.] THEOREMA XXVII. PROPOS. XXVIII.
[349.] THEOREMA XXVIII. PROPOS. XXIX.
[350.] THEOREMA XXIX. PROPOS. XXX.
[351.] THEOREMA XXX. PROPOS. XXXI.
[352.] COROLLARIVM.
[353.] THEOREMA XXXI. PROPOS. XXXII.
[354.] COROLLARIVM.
[355.] THEOREMA XXXII. PROPOS. XXXIII.
[356.] COROLLARIVM.
[357.] THEOREMA XXXIII. PROPOS. XXXIV.
[358.] SCHOLIVM.
[359.] COROLLARIVMI.
[360.] COROLLARIVM II.
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Pariter ſi figuræ genitrices ſolidorum ſint circuli, vel ellipſes, illæ
autem
, quæ dicuntur @omnes figuræ ſimiles earundem ſumptæ cum datis
regulis
) ſint pariter circuli, quorum deſcribentes rectæ lineæ in figuris
genitricibus
ſint eorundem diametri, ſolida ſimilaria genita ex eiſdem,
iuxta
eaſdem regulas, erunt, alterum ſpbæra, quod ſcilicet gignitur ex
22_@6. Lib. 1._ circulo, alterum ſphæroides quod ſcilicet gignitur ex ellipſi, ſi figuræ
ſimiles
rectè ſecent axem ellipſis, &
ſint erectæ tum circulo, tum ellipſi;
33_47. Eiuſd._
_lib
. 1._
poterit etiam eſſe ſpbæroides, etiamſi figuræ ſimiles non ſint circuli, ſed
ellipſes
iuxta alibi oſtenſa;
quæ igitur in boc caſu nomine communi di-
cuntur
, ſolida ſimilaria genita ex circulo, vel ellipſi, iuxta datas regu-
las
, nomine particulari, &
proprio, dicuntur ſphæra, vel ſphæroides:
Et quæ pariter dicerentur nomine communi ſolida ſimilaria genita ex
portione
tali, vel tali, iuxta talem regulam, portione inquam circuli,
vel
ellipſis, quotieſcunque figuræ, quæ dicuntur, omnes figuræ ſimiles
talis
portionis iuxta eandem regulam, ſint circuli erecti genitricibus,
&
figura genitrix pontio circuli, erit, & dicetur nomine particulari, &
proprio
, portio ſphæræ;
ſi verò ſigura genitrix ſit ellipſis portio, & ſi-
44_46. Lib. 1._ guræ ſimiles ſint circuli erecti genitricibus, rectè axem portionis ſecan-
55_47. Lib. 1._ tes, ſiet portio ſphæroidis, quod ſi ſint ellipſes erectæ genitricibus, dia-
metros
habentes, vt poſtulat Propoſ.
47. Lib. 1. fiet etiam portio ſphæ-
roidis
:
Sic igitur nommibus particularibus hæc ſolida vocari conſuene-
runt
.
Cum verò figuræ ſimiles non ſunt neq; circuli, neq; ellipſes ſum-
ptæ
, vt dictum eſt, ſufficiet eadem vocare nomine communi ſolidi ſimi-
Laris
, &
c. licet ad variationem, & nominationem ſimilium figurarum,
conſequenter
&
eadem varia ſolida, variè nominari poſſent; fortè autem
in
ſequentibus ex genitricium figurarum variatione varia nomina com-
ponemus
, interim hæc teneantur, hoc animaduerſo, quod in ſuperiori-
bus
, dum ſit ſphæra, vel ſphæroides, vel eorundem portio, ſuppono li-
neas
, quæ ſunt in genitricibus ſiguris, &
circulos, vel ellipſes

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