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

Table of contents

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[411.] THEOREMA V. PROPOS. V.
[412.] COROLLARIV M.
[413.] THEOREMA VI. PROPOS. VI.
[414.] COROLLARIV M.
[415.] THEOREMA VII. PROPOS. VII.
[416.] THEOREMA VIII. PROPOS. VIII.
[417.] SCHOLIV M.
[418.] PROBLEMA I. PROPOS. IX.
[419.] THEOREMAIX. PROPOS. X.
[420.] COROLLARIV M.
[421.] THEOREMA X. PROPOS. XI.
[422.] COROLLARIV M.
[423.] THEOREMA XI. PROPOS. XII.
[424.] THEOREMA XII. PROPOS. XIII.
[425.] THEOREMA XIII. PROPOS. XIV.
[426.] THEOREMA XIV. PROPOS. XV.
[427.] THEOREMA XV. PROPOS. XVI.
[428.] THEOREMA XVI. PROPOS. XVII.
[429.] COROLLARIVM.
[430.] THEOREMA XVII. PROPOS. XVIII.
[431.] THEOREMA XVIII. PROPOS. XIX.
[432.] A. COROLL. SECTIO I.
[433.] B. SECTIO II.
[434.] C. SECTIO III.
[435.] D. SECTIO IV.
[436.] E. SECTIO V.
[437.] SCHOLIV M.
[438.] THEOREMA XIX. PROPOS. XX.
[439.] COROLLARIVM.
[440.] THEOREMA XX. PROPOS. XXI.
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325305LIBER IV.
THEOREMA XV. PROPOS. XVI.
INeadem ſupradicti Theorematis figura oſtendemus tri-
lineum, VNAI, ad trilineum, VNABX, eſſe vt pa-
rallelepipedum ter ſub, EI, &
quadrato, IA, cum cubo,
IA, ad parallelepipedum ter ſub, CX, &
quadrato, XB,
cum cubo, XB.
Similiter trilineum, VEI, ad trilineum,
VECX, eſſe vt parallelepipedum ter ſub, AI, &
quadra-
to, IE, cum cubo, IE, ad parallelepipedum terſub, BX, &

quadrato, XC, cum cubo, XC.
Trilineum enim, VNAI, ad parabolam, ANE, eſt vt paral-
116.huius. lelepipedum ter ſub, EI, &
quadrato, IA, cum cubo, IA, ad cu-
bum, AE, item parabola, ANE, ad parabolam, BNC, eſt vt
cubus, AE, ad cubum, BC, &
tandem parabola, BNC, ad trili-
222.huius. neum, VABX, eſt vt cubus, CB, ad parallelepipedum ter ſub, C
X, &
quadrato, XB, cum cubo, BX, ergo, ex æquali, trilineum,
VNAI, ad trilineum, VNBX, erit vt parallelepipedum ter ſub,
336.huius. EI, &
quadrato, IA, cum cubo, IA, ad parallelepipedum ter
ſub, CX, &
quadrato, XB, cum cubo, XB. Eodem modo o-
ſtendemus trilineum, VIE, ad trilineum, VXC, eſſe vt paralle-
lepipedum ter ſub, AI, &
quadrato, IE, cum cubo, IE, ad pa-
rallelepipedum ter ſub, BX, &
quadrato, XC, cum cubo, XC,
quod, &
c.
THEOREMA XVI. PROPOS. XVII.
SI duæ intra curuam parabolicam ducantur rectæ lineæ
axem ſecantes, fuerint autem conſtitua@um ab eiſdem
parabolarum diametri, vel axis, &
diameter æquales, & ipſe
parabolæ erunt æquales.
Sit curua parabolica, BAC, intra quam ducantur vtcunque duę,
DF, MC, axem ſecantes, ideſt non parallelæ axi, ſint autem, A
R, HO, diametri, vel axis, &
diameter inter ſe æquales. Dico
parabolam, DAF, eſſe æqualem parabolæ, MHFC;

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