Viviani, Vincenzo, De maximis et minimis, geometrica divinatio : in qvintvm Conicorvm Apollonii Pergaei

Table of contents

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[91.] PROBL. XVI. PROP. XXXI.
[92.] THEOR. XIII. PROP. XXXII.
[93.] THEOR. IV. PROP. XXXIII.
[94.] MONITVM.
[95.] THEOR. XV. PROP. XXXIV.
[96.] THEOR. XVI. PROP. XXXV.
[97.] THEOR. XVII. PROP. XXXVI.
[98.] COROLL.
[99.] THEOR. XIII. PROP. XXXVII.
[100.] THEOR. XIX. PROP. XXXVIII.
[101.] LEMMA IV. PROP. XXXIX.
[102.] THEOR. XX. PROP. XXXX.
[103.] COROLL.
[104.] THEOR. XXI. PROP. XXXXI.
[105.] COROLL.
[106.] THEOR. XXII. PROP. XXXXII.
[107.] ALITER.
[108.] COROLL. I.
[109.] COROLL. II.
[110.] LEMMA V. PROP. XXXXIII.
[111.] THEOR. XXIII. PROP. XXXXIV.
[112.] COROLL.
[113.] Quod ſuperiùs promiſimus oſtendetur ſic.
[114.] THEOR. XXIV. PROP. XXXXV.
[115.] COROLL.
[116.] LEMMA VI. PROP. XXXXVI.
[117.] THEOR. XXV. PROP. XXXXVII.
[118.] ALITER.
[119.] COROLL. I.
[120.] COROLL. II.
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COROLL.
HInc, data ratione maioris inæqualitatis, hoc eſt D E, ad E H, &
differentia A C inter duo s terminos ignotos A G, G C, qui de-
beant eſſe in data ratione, eruitur quomodo reperiantur ipſi termini A G,
G C.
Facta enim fuit vt D H differentia primorum, ad H E minorem ter-
minum, ita data differentia A C, ad aliam C G, &
reperti ſunt quæſiti
termini A G, G C, Nam ſtatim oſtenſum fuit eſſe A G ad G C, vt D E
ad E H.
THEOR. XII. PROP. XVII.
Si fuerit in angulo rectilineo quælibet applicata, à qua hinc
inde ab eius termino æqualia ſegmenta ſint abſciſſa, &
per v-
num diuiſionis punctum deſcribatur Hyperbole, cuius aſympto-
ti ſint latera dati anguli, ipſa per alterum punctum neceſſariò
tranſibit.
SIt in angulo A B C applicata quæcunque A C, quæ inæqualiter ſece-
tur in D, &
ſumatur C E æqualis A D. Dico ſi per punctum D de-
ſcribatur Hyperbole, cuius aſymptoti ſint B A, B C, ipſam omnino tran-
ſire per E.
Quod huiuſmodi Hyper-
162[Figure 162] bole tranſiens per D, alibi
ſecet applicatam A C, pa-
tet.
Nam ſi eam continge-
ret in D, eſſet A C æquali-
ter ſecta in D:
quod 113. ſecun-
di conic.
contra hypoteſim.
Secet er-
go in F;
& erit F C 228. ibid. lis A D, ſed eſt quoque E
C eidem A D ęqualis, qua-
re F C, E C ęquales erunt;
hoc eſt punctum F congruet
cum ipſo E;
quare Hyper-
bole D F, quæ in angulo aſymptotali A B C deſcribitur per D, omnino
tranſit per E.
Quod erat demonſtrandum.

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