Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 2: Opera geometrica. Opera astronomica. Varia de optica

Table of figures

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[171] Fig. 52.12. Febr. *
[172] Fig. 53.* 24. Febr.
[173] Fig. 54.25. Febr. *
[174] Fig. 55.14. Mart. *
[175] Fig. 56.16. Mart. *
[176] Fig. 57.* 21. Mart.
[177] Fig. 58.* 22. Mart.
[178] Fig. 59.26. Mart. *
[179] Pag. 574.TAB. XLIX.Fig. 2.
[180] Fig. 1.C K O B H N G M S * F D A L E
[181] Fig. 3.E C D A * B
[182] Fig. 4.P Q O N M L * C R
[183] Fig. 5.C * V S X T Y
[184] Fig. 6.
[185] Fig. 7.
[186] Pag. 580.TAB. L.Fig. 2.R ♈ L D I T A N ♋ H G E P F K C Q O B M S
[187] Fig. 3.
[188] Fig. 4.N Q F C P L E A M H O D f
[189] Fig. 1.B A
[Figure 190]
[Figure 191]
[192] Pag. 626.TAB. LI.Fig. 1.F E D V S 30 20 10 C L G R H K P A M Z I O X B
[193] Fig. 2.L K O R E H N I S D G B C
[194] Fig. 3.A 16 15 14 13 12 11 10 9 B 8 7 6 5 4 3 2 1
[195] Fig. 4
[196] Fig. 5.
[197] Fig. 6.
[198] Fig. 1.
[199] Fig. 2.
[200] Fig. 3.
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page |< < (435) of 568 > >|
162435ET HYPERBOLÆ QUADRATURA.
PROP. XIV. THEOREMA.
Sint duo polygona complicata A, B, nem-
11
A # B
C # D
E # F
pe A intra circuli vel ellipſeos ſectorem &

B extra:
continuetur ſeries convergens horum
polygonorum complicatorum ſecundum no-
ſtram methodum ſubduplam deſcriptorum, ita
ut polygona intra circulum ſint A, C, E, &
c, & extra cir-
culum B, D, F, &
c; dico A + E minorem eſſe quam 2 C:
ex prædictis manifeſtæ ſunt ſequentes analogiæ; prima quo-
niam A, C, B, ſunt continue pro-
22
C - A:B - C::A:C
B - C:D - C::A + C:A
portionales;
& ſecunda quoniam
C, D, B, ſunt harmonice pro-
portionales:
& proinde exceſſus
C ſupra A, hoc eſt C — A, eſt ad exceſſum D ſupra C ſeu
D - C in ratione compoſita ex proportione A ad C &
ex
proportione A + C ad A, hoc eſt in ratione A + C ad C;
at A + C eſt major quam C, & ideo exceſſus C ſupra A eſt
major quam exceſſus D ſupra C, eſt autem D major quam
E, &
proinde exceſſus C ſupra A multò major eſt quam
exceſſus E ſupra C;
eſt igitur A + E minor quam 2 C;
quod demonſtrare oportuit.
PROP. XV. THEOREMA.
Iiſdem poſitis: dico exceſſum C ſupra A minorem eſſe qua-
druplo exceſſus E ſupra C.
ex prædictis manifeſtæ ſunt
ſequentes tres analogiæ, prima quoniam A, C, B, ſunt con-
tinuè proportionales;
ſecunda, quoniam C, D, B, ſunt har-
monicè proportionales;
& tertia, quoniam C, E, D, ſunt con-
tinuè proportionales;
& ideo
33
C - A:B - C::A:C
B - C:D - C::A + C:A
D - C:E - C::E + C:C
exceſſus C ſupra A (hoc eſt)
C - A eſt ad exceſſum E ſu-
pra C ſeu E - C, ut A C + E C
+ AE + CC ad CC;
at B

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