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-0068-01" xlink:href="fig-0068-01a" number="28">
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            cumſcripti hemiſphærio, ſeù hemiſphæroidi ſint
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            quatuor magnitudines proportionaliter analogæ: </s>
            <s xml:id="echoid-s1049" xml:space="preserve">ſe-
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            quitur his etiam aſſociari pro quinta magnitudine
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            annulum latum prædictum. </s>
            <s xml:id="echoid-s1050" xml:space="preserve">Ex dictis ergo in lib cit.
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            </s>
            <s xml:id="echoid-s1051" xml:space="preserve">habebimus, quod centrum grauitatis talis annuli ſic
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            ſecabit E F, vt pars terminata ad E, ſit ad par-
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            tem terminatam ad F, vt 3. </s>
            <s xml:id="echoid-s1052" xml:space="preserve">ad 1. </s>
            <s xml:id="echoid-s1053" xml:space="preserve">Pariter ſi con-
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            ſiderabimus quamlibet partem eiuſdem annuli re-
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            ſectiplano C L, parallelo, & </s>
            <s xml:id="echoid-s1054" xml:space="preserve">terminatam ad </s>
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