Viviani, Vincenzo
,
De maximis et minimis, geometrica divinatio : in qvintvm Conicorvm Apollonii Pergaei
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XY in X, producta ſecabit etiam DF aſymptoton ABC, ac ipſam quoque
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ſectionem ABC, ſed XZ tota cadit extra OEQ, cum ſit eius
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quare occurſus rectæ XZ cum ſectione ABC cadet extra OEQ, ac ideò ſe-
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ctio ABC occurret priùs ſectioni OEQ. </
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_MINIMA_ circumſcripta quæſita. </
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<
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ſectiones BA, EL ſimiles, & </
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">ad eandem regulam HI, infra BV ad ſe
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propiùs accedant ſectio BA recedet ab VL per interuallum aliquando
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">45. h.</
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nùs BV, ſed inſcripta OP recedit ab eadem VL per interuallũ maius eodem
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BV, cum ſint ſemper magis recedẽtes, & </
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<
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"> ad interuallum perueniant
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quolibet dato interuallo: </
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">quare BA, & </
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iterum erat, &</
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ſibi concentricam Hyperbolen inſcribere, & </
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<
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">Datæ Hyperbolæ, per punctum extra ipſam datum MINIMAM
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ſibi concentricam Hyperbolen circumſcribere. </
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datum punctum eſſe in angulo aſymptotali.</
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ctum intra ſectionem datum ſit E: </
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concentricam Hyperbolen inſcribere.</
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http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/QN4GHYBF/figures/0119-01
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DB ſemi-tranſuerſum ſectionis
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mi conic.</
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cui per E cum ſemi tranſuerſo ED
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ſcribatur ſimilis, & </
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bole FEG (hoc autem ſieri poſſe mani-
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feſtum eſt: </
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aſymptotos DL, cum ſimiles concentri-
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cæ Hyperbolæ per diuerſos vertices ad-
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ſcriptæ habeant communem
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47. huius.</
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ton, & </
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aſymptotos datur quoque rectum) patet
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hãc ſectionẽ FEG datæ ABC eſſe inſcri-
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ptam, cum ſint nunquã ſimul coeuntes.</
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<
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libet alia per E verticem adſcripta ipſi ABC, vel FEG minor eſt ipſa FEG;</
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roll. 19. h.</
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quælibet, verò cum recto, quod prædictum excedat, qualis eſt HEI, eſt qui-
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dem maior eadem FEG, ſed omnino ſecat circumſcriptam ABC. </
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cum Hyperbolæ FEG, HEI ſint concentricæ, & </
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mul adſcriptæ, ſitque DL aſymptotos inſcriptæ FEG, ipſa ſecabit </
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