Angeli, Stefano degli, Miscellaneum hyperbolicum et parabolicum : in quo praecipue agitur de centris grauitatis hyperbolae, partium eiusdem, atque nonnullorum solidorum, de quibus nunquam geometria locuta est, parabola nouiter quadratur dupliciter, ducuntur infinitarum parabolarum tangentes, assignantur maxima inscriptibilia, minimaque circumscriptibilia infinitis parabolis, conoidibus ac semifusis parabolicis aliaque geometrica noua exponuntur scitu digna

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          <pb o="15" file="0027" n="27"/>
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            <image file="0027-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/PVNDER1Y/figures/0027-01"/>
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          <head xml:id="echoid-head25" xml:space="preserve">PROPOSITIO VI.</head>
          <p style="it">
            <s xml:id="echoid-s346" xml:space="preserve">Fn ſolidis ſæpe dictis, exceßus conoidis hyperbolici ſupra
              <lb/>
            conum ſibi inſcriptum est æqualis exceſſui conoidis pa-
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            rabolici illi inſcripti ſupra conum illi inſcriptum, tam
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            ſecundum totum, quam ſecundam partes proportio-
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            nales.</s>
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            <s xml:id="echoid-s348" xml:space="preserve">QVantum ad totos exceſſus ſic patebit. </s>
            <s xml:id="echoid-s349" xml:space="preserve">Cum
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            enim ex propoſit. </s>
            <s xml:id="echoid-s350" xml:space="preserve">4. </s>
            <s xml:id="echoid-s351" xml:space="preserve">exceſſus conoideorum ſit
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            æqualis exceſſui conorum, ſi communis auferatur
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            illa pars, quæ generatur ex reuolutione trilinei </s>
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