Ceva, Giovanni
,
Geometria motus
,
1692
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Tab.
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7.
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fig.
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5.</
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Def.
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7.
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primi
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huius.
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23.
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huius.
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PROP. XXVII. THEOR. XXI.
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Tab.
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7.
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fig.
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6.</
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<
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">DEmùm ſi ſint imagines, quæcunque velocitatum ſim
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plicium, ſimiliumque motuum, imagines accelera
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torum motuum, ſeu ſpatia ijs motibus exacta componen
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tur ex duplicata temporum ratione, & ex ea amplitudi
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num, vel applicatarum homologarum earundem imagi
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num. </
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">Imagines ſimilium, ſimpliciumque motuum ſint BAC,
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KFG. Dico, imagines acceleratorum motuum ab illis ſim
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plicibus deriuantium habere rationem compoſitam ex du
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plicata temporum AC ad FG, & amplitudinum imaginum
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dictarum, vel geneſum. </
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">Intelligatur alius ſimilis motus,
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cuius velocitatum imago ſit DFG æquèampla, ac homo
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genea ipſi BCA; nimirum ſit DG æqualis BC. </
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imago accelerati motus ex ſimplici imagine BA ad imagi
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nem accelerati ex ſimplici imagine KFG componitur ex
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ratione imaginis accelerati motus, cuius ſimplex imago
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BAC ad imaginem accelerati motus ex ſimplici DFG, &
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ex imagine huius accelerati motus ad accelerati imaginem
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à ſimplici KFG; eſt autem prior ratio imaginum, ſeu ſpa
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tiorum acceleratis motibus percurſorum ipſa temporum </
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duplicata AC ad FG, & altera dictarum imaginum, ſeu
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ſpatiorum item acceleratis motibus confectorum, & quo
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rum ſimplices imagines ſunt DFG, KFG, eſt eadem, ac ra
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tio amplitudinum DG, ſeu BC ad KG. </
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amplitudines ſint eædem, ac illæ geneſum, conſtat propo
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ſitam rationem acceleratorum motuum ex ſimplicibus
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imaginibus BAC, KFG habere rationem compoſitam ex
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duplicata temporum AC ad FG, & ex ea amplitudinum
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imaginum ſimplicium BC ad KG, ſeu amplitudinum gene
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ſum. </
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