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

Table of figures

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[Figure 81]
[Figure 82]
[83] TAB. XLIV.Fig. 2.D H A B E F G
[84] Fig. 1.E G N L O I Q P D K M H F A
[85] Fig. 3.B E F A D G C
[86] I. CasusFig. 4.Y Q R C A B M L I K V C O S X
[87] II. CasusFig. 5.R C Y Q A B I L M K V O X S C
[88] III. CasusFig. 6.Q C D Y K L I N M S V B X C A G O
[89] Fig. 7.IV. CasusQ D C A B S L N X M I V Y K C G O
[Figure 90]
[91] Pag. 506.TAB. XLV.Fig. 1.C F D B
[92] Fig. 2.C B A E F
[93] Fig. 3.B b F f H c
[94] Fig. 4.C D B A E F G H
[95] Fig. 5.C b d D B E F G f g e
[96] Fig. 6.B G A C D
[Figure 97]
[Figure 98]
[Figure 99]
[Figure 100]
[Figure 101]
[Figure 102]
[103] Pag. 520.TAB. XLVI.Fig. 1.D C E A X F K V O I L T α M N
[104] Fig. 3.Δ A Φ G F N E M I D H L B C K O P Q Σ R T V X Y Z S Γ Δ Θ @
[105] Fig. 5.C B A D E
[106] Fig. 4.H C L E B A D F K G
[107] Fig. 6.L G C F M A H B E I D K
[108] Fig. 2.G C H B A Y L X P K V Q I O S R F D E N
[Figure 109]
[Figure 110]
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215485 81[Figure 81]
I.
CONSTRUCTIO LOCI
AD HYPERBOLAM
PER ASYMPTOTOS.
In æquatione loci ad hyperbolam, ſi neutra indeter-
11TAB. XLIV.
fig. 4. 5. 6. 7.
minatarum linearum in ſeipſam ducta inveniatur,
velut ſi ſit xy = bb;
vel xy = cx. bb; (literis x & y
lineas indeterminatas A B, B C ſignificantibus,
quæ in dato angulo ſibi mutuò ſint applicatæ, quarumque al-
tera, ut A B, poſitione data intelligitur, &
in ea datum pun-
ctum A) conſtructio per aſymptotorum inventionem facilè
abſolvitur, ut oſtenſum eſt à Fl.
de Beaune in Notis ad Geo-
metriam Carteſii.
Cum verò habetur x x vel y y in æquatio-
ne, vel utrumque nihilominus ad aſymptotos rem deduci
poſſe, &
quidem brevius quàm ad diametri laterumque re-
cti &
transverſi inventionem, oſtendemus hoc modo.
Sit æquatio ejuſmodi reducta, y = l. {nx/z} √mm. ox + {ppxx; /gg}
ſemper enim ad hos terminos reduci poteſt, nempe ut y al-
tera linearum indeterminatarum, quæ applicata eſt ad poſi-
tionem datam, ſola ab una parte æquationis habeatur, ab alte-
ra verò non plures termini quàm hîc inveniantur;
nam ſæ-
pe pauciores etiam eſſe poſſunt, cum ſoli neceſſarii ſint
+ {ppxx/gg} cum alterutro horum mm vel ox.
Quum angulus A B C datus ſit, ducatur per A punctum
linea X Y quæ ſit rectæ B C parallela, &
in ea accipiatur AI
æqualis l, idque ad partes B C, ſi habeatur + l in æquatio-
ne, in contrarias verò ſi habeatur — l, &
agatur I K

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