Viviani, Vincenzo
,
De maximis et minimis, geometrica divinatio : in qvintvm Conicorvm Apollonii Pergaei
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NVM ACVMINATVM REGVLARE, vel potius (breuitatis cauſa)
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ACVMINATVM, cuius terminus B vocetur VERTEX; </
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tes A C, E F, G H, &</
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PLICAT Æ ad ipſam B D, qnæ vocetur DIAMETER, vel AXIS quan-
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do ipſa perpendiculariter ſecet eaſdem applicatas. </
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SIS ACVMINATI; </
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dicularis, ACVMINATI ALTITVDO nuncupetur.</
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tantùm ACVMINATA PROPORTIONALIA dicantur illa, quorum
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omnes applicatæ à punctis eorum diametros proportionaliter diuidenti-
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bus, ſint quoque inter ſe proportionales.</
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minata Regularia ABC,
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E F G, ſuper baſes A C,
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E G, qualia in præce-
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denti definitione expli-
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cauimus, quorum dia-
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metri B D, F H propor-
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tionaliter ſectæ ſint in
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quotcunque punctis I,
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M; </
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ad I D, vt F M ad M H,
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& </
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ad N H, &</
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punctis inter ſectionum
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applicatæ ſint O P, QR;
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logis punctis ſint ad inuicem proportionales, hoc eſt vt A C ad E G, ita
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O P ad S T, & </
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ACVMINATA REGVLARIA PROPORTIONALIA, veltantùm ACV-
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MINATA PROPORTIONALIA.</
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