Theodosius <Bithynius>; Clavius, Christoph
,
Theodosii Tripolitae Sphaericorum libri tres
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cunferentiæ æquales, & </
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tes maximi parallelorum; </
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<
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">per puncta autem termi-
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nantia æquales circunferentias deſcribantur paral
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leli circuli: </
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<
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xml:space
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">Hi circumferentias inæquales interci-
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pient de maximo circulo primo poſito, quorum
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ea, quæ propior erit maximo parallelorum, erit
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maior remotiore.</
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<
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<
s
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xml:space
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">IN ſphæra maximus circulus A B C D, tangat circulum A E, in puncto
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A; </
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<
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">alium C F, illi æqualem: </
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">Alius autem circulus maximus G H,
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ad parallelos obliquus tangat alios duos circulos maiores illis, quos A B C D,
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tangit, ſintq́ue puncta contactuum G, H, in maximo circulo ABCD; </
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</
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<
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<
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arcus æquales Ik, K L, & </
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Q R. </
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rallelorum circulus maximus dcfcribatur Sk, ſecans parallelos in punctis T,
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http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/YC97H42F/figures/089-01
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V. </
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ximus circulus kE, tangens
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parallelum A E, in E, ſecansq́;
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parallelos alios in X, Y; </
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men, vt hæc puncta X, Y, ſint
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inter puncta L, T, & </
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ita fiet. </
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huius.</
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circuli deſcribi poſſunt tágen-
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ntes circulum A E, quorum
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vnus inter arcus kG, kS, ca-
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dit, alter vero extra ipſos; </
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ſi ambo ex eadem parte circu-
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lum A E, tangerent, ſecarent
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ſeſe mutuo prope puncta con-
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tactuum, quòd alter alteri oc-
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curreret. </
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<
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</
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<
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quod ipſi K, opponitur inter
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alterum polum, & </
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parallelorũ.) </
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cadẽt puncta X, Y, inter puncta L, T, & </
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ſuperficie intra peripheriam circuli M N, punctum k, ſignatum eſt præter po-
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lum S, & </
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<
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kV, omnium minimus, & </
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<
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huius.</
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ſphæræ extra peripheriam circuli Q R, ſignatum eſt punctum K, præter eius
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polum, & </
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huius.</
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erit K T, omnium minimus, & </
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