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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              <figure xlink:label="fig-0164-01" xlink:href="fig-0164-01a" number="68">
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            bus propoſitionibus, inſeruire infinitas parabolas
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            inuentioni rationi cylindrorum E C, vel eis æqua-
              <lb/>
            lium factorum ex E D, circa E A, ad annulos ex
              <lb/>
            A B D, circa A E, quorum exponentes ſint numeri
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            pares. </s>
            <s xml:id="echoid-s2803" xml:space="preserve">Pariter eliciemus nos ex his habere centrum
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            æquilibrij in baſi A D, ſemiparabolarum A B D,
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            quarum exponentes ſunt numeri pares, & </s>
            <s xml:id="echoid-s2804" xml:space="preserve">non om-
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            nium.</s>
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            <s xml:id="echoid-s2806" xml:space="preserve">Patet ergo ex dictis, aliquod admirabile, & </s>
            <s xml:id="echoid-s2807" xml:space="preserve">non
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            minus eo, quod expoſitum fuit in prædicto ſchol. </s>
            <s xml:id="echoid-s2808" xml:space="preserve">4.
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            <s xml:id="echoid-s2809" xml:space="preserve">propoſit. </s>
            <s xml:id="echoid-s2810" xml:space="preserve">4. </s>
            <s xml:id="echoid-s2811" xml:space="preserve">lib. </s>
            <s xml:id="echoid-s2812" xml:space="preserve">4. </s>
            <s xml:id="echoid-s2813" xml:space="preserve">Hoc autem eſt, quod infinitæ para-
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            bolæ inſeruiunt tam inuentioni centri grauitatis </s>
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