Viviani, Vincenzo
,
De maximis et minimis, geometrica divinatio : in qvintvm Conicorvm Apollonii Pergaei
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quiori, & </
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<
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<
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ſimul recedentes. </
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<
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">&</
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<
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</
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<
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<
s
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xml:space
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">Præterea ſit TX aſymptotos inſcriptæ DBE, & </
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<
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xml:space
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">VZ aſymptotos circum-
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ſcriptæ, quæ contingentem GB productam ſecent in X, Z; </
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<
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xml:space
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">cum huiuſmo-
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di Hyperbole ſint ſimiles, ſintque earum aſymptoti VZ, TX ad partes ęqua-
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lium inclinationum ductæ, erit angulus ZVB æqualis angulo XTB,
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40. h.</
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TX æquidiſtat VZ, ſed eſt VZ. </
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<
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">Aſymptotos circumſcriptæ, vnde TX pro-
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ducta ſecabit circumſcriptam Hyperbolen ABC; </
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<
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">ſecet ergo eam in 2, &</
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per 2 applicetur 3 2 4 5 alteram aſymptoton, inſcriptam ſectionem, ac
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diametrum ſecans in 3,4,5 dico huiuſmodi Hyperbolas, licet ſemper inter
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ſe magis recedant, nnnquam tamen ad interuallum peruenire æquale inter-
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uallo 3 2, quod inter æquidiſtantes aſymptotos intercedit, & </
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<
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tim ductas metitur.</
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<
s
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">Nam cum in ſimilibus Hyperbolis ABC, DBE, ex æqualibus, immo ex
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eodem diametri ſegmento B 5, ducta ſit quædam applicata 5 4 2 3 ſimi-
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limium Hyperbolarum aſymptotos ſecans in 2, 3; </
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<
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">erit intercepta
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applicatæ portio 3 2 in Hyperbola maiorum laterum, maior intercepta
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portione 2 4, in Hyperbola minorum. </
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">Ampliùs applicata infra 3 2 4 5,
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qualibet alia 6 7 8 9; </
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tione 8 9, quare addita communi 7 8; </
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hoc ſemper, vbicunque ſit intercepta 8 9 infra 2 4 licet ipſae; </
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<
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continuè augeantur. </
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<
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">Vnde ſimiles Hyperbolæ per eundem verticem ſimul
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adſcriptę, quamuis ſint ſemper magis recedentes ad interuallum tamen non
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perueniunt æquale cuidam dato interuallo. </
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<
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habent aſymptotos parallelas, & </
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bolen circumſcriptam: </
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<
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">nam vltimò loco oſtẽdimus TX ęquidiſtare ipſi VZ,
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& </
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ſunt inter ſe nunquam coeuntes, & </
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pius accedunt, & </
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interuallo.</
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<
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ſimul adſcriptæ, quarum recta latera ſint BG, EH (quæ inter ſe æqua-
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lia erunt, cum ſectiones ponantur congruentes.) </
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<
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roll. 19. h.</
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finitum productas nunquam inter ſe conuenire.</
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<
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<
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erit quoque ordinatim ducta in ſectione ABC (cum ſint ſectiones ſimul ad-
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ſcriptæ) & </
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