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

Table of figures

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[11] Fig. 7.E S D P B
Page: 26
[12] Pag. 326.TAB. XXXV.Fig. 1.N H T Z Ψ G K X S Σ Α E Ξ Y F O L B Δ R P V C Q Ω D M
Page: 31
[13] Fig. 5.B L A C D F M G K E H
Page: 31
[14] Fig. 4.B L A C D F M G K H E
Page: 31
[15] Fig. 2.B Δ P R V C Q Ω D A L F O Y Ξ Α Σ X S G K Ψ Z T H E N M
Page: 31
[16] Fig. 3.B Δ P R V A D Ω Q C L F O Y Ξ Α Σ X S G K E Ψ Z T H E N M
Page: 31
[17] Pag. 328.Fig. 2.B L F A D C H E
Page: 36
[18] Fig. 1.B L F A D C H E
Page: 36
[19] Fig. 3.B E A D C
Page: 36
[20] Fig. 4.Q B H A F C E G R D K
Page: 36
[21] Fig. 5.B E D A C G F
Page: 36
[Figure 22]
Page: 49
[23] Pag. 340.TAB. XXXVII.Fig. 1.C G H F E DH A X Q Y T N V B G
Page: 51
[24] Fig. 3.γ A F D X B P N V E Q C
Page: 51
[25] Fig. 2.K C Δ R Θ Z O Γ D I
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[26] Fig. 4.A B D C Π Φ N E S P F
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[27] Fig. 2.M E Ψ Λ Φ S Ξ Π Ρ Σ Ω F L
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[28] Fig. 5.K B Δ E Z A C R O D Θ Γ I
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[Figure 29]
Page: 55
[Figure 30]
Page: 65
[Figure 31]
Page: 69
[32] Pag. 366.TAB.XXXVIII.Fig. 1.B E F G A D C
Page: 80
[33] Fig. 2.E F G B A C
Page: 80
[34] Fig. 3.B E D C A F
Page: 80
[35] Fig. 4.D G E F I B K M N H L A C
Page: 80
[36] Fig. 5.HD A B C
Page: 80
[37] Fig. 6.E D C B F G A
Page: 80
[38] Fig. 8.D E G B A F C
Page: 80
[39] Fig. 7.N G H I KE L M A P C O F B D
Page: 80
[40] Pag. 376.TAB. XXXIXFig. 1.E K C B A L H G D F
Page: 93
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16316THEOR. DE QUADRAT. minor erit dato ſpatio; ſit ea parallelogrammum B F, & di-
vidatur baſis A C in partes æquales ipſi D F, punctis
G, H, K & c. atque inde ducantur ad ſectionem rectæ
G L, H M, K N & c. diametro B D parallelæ, & perfi-
ciantur parallelogramma D O, G P, H Q, K R & c. Di-
co figuram ex omnibus iſtis parallelogrammis compoſitam
(quæ impoſterum ordinatè circumſcripta vocabitur) ſupera-
re portionem A B C minori quàm datum ſit ſpatio.
Jungantur enim A N, N M, M L, L B, B S, & c.
eritque hac ratione inſcripta quoque portioni figura quædam
rectilinea; majorque erit exceſſus figuræ circumſcriptæ quæ
ex parallelogrammis compoſita eſt, ſuper inſcriptam, quàm
ſupra portionem A B C. Exceſſus autem circumſcriptæ ſuper
inſcriptam ex triangulis conſtat, quorum quæ ſunt ab una
diametri parte, ut A R N, N Q M, M P L, L O B,
æquantur dimidio parallelogrammi O D vel B F, quia ſin-
gulorum baſes baſi D F æquales ſunt, & omnium ſimul al-
titudo, parallelogrammi B F altitudini. Eâdem ratione trian-
gula qu& ſunt ab altera diametri parte, æquantur dimidio
parallelogrammi B F: Ergo omnia ſimul triangula ſive di-
ctus exceſſus æqualis eſt parallelogrammo B F, eóque mi-
nor ſpatio dato. Sed eodem exceſſu adhuc minor erat ex-
ceſſus figuræ circumſcriptæ ſupra portionem A B C: igitur
hic exceſſus dato ſpatio multo minor eſt. Et apparet fieri
poſſe quod proponebatur.
Theorema II.
DAtâ portione hyperboles, vel ellipſis vel circuli
portione, dimidiâ ellipſi dimidiove circulo non
majore, & dato triangulo qui baſin habeat baſi por-
tionis æqualem; poteſt utrique figura circumſcribi ex
parallelogrammis quorum ſit omnium eadem latitu-
do, ita ut uterque ſimulexceſſus quo figuræ circum-
ſcriptæ portionem & triangulum ſuperant, ſit minor
ſpatio quovis dato.

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