Barrow, Isaac
,
Lectiones opticae & geometricae : in quibus phaenomenon opticorum genuinae rationes investigantur, ac exponuntur: et generalia curvarum linearum symptomata declarantur
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<
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">Cùm enim _circulus centro_ H per M deſcriptus _curvam_ intròrſum
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tangat, etiam magìs _circulus centro_ I _deſcriptus_ introrſum tangat. </
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de liquet.</
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<
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entium maxima, & </
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punctum quodpiam I, erit IM maxima.</
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<
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">Cùm enim _Circulus Centro_ H _per_ M _deſcriptus curvam_ extrorſum
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contingat, etiam potiori jure _Circulus Centro_ I _per_ M _deſcriptus eandem_
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_exirorſus continget_. </
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<
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ex ſpeciali curvæ natura.</
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<
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tiarum hujuſmodi pleraq; </
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cit hactenus generalis cujuſdam curvarum proprietates comprehenden-
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tis Doctrinæ _ſpecimen_ exhibuiſſe: </
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_baud exiguum videtur rebus Geometricis_ (quæ nempe circa _curvaruns
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_
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_proprietates & </
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">affectiones_ plurimùm occupàntur) _compendiuns allat@-_
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_ra_. </
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">Nè dicam culpæ agnatum videri, _Logicæ{q́ue}_ Regulis haud admodum
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congruere, quæ toti cuipiam generi conveniunt, & </
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quadam origine manant, ea quibuſdam partibus adſcribere, vel ex an-
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guſtiorifonte derivare. </
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quando. </
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