Theodosius <Bithynius>; Clavius, Christoph
,
Theodosii Tripolitae Sphaericorum libri tres
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tur ſecare circulum A B C. </
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<
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xml:space
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num circuli A B C, ad plana circulorũ A B,
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A C, rectum eſt oſtenſum, erunt vicisſim pla
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na circulorum A B, A C, ad planum circuli
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A B C, recta; </
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<
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<
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ipſorum ſectio ad idem planũ circuli A B C,
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perpendicularis erit. </
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<
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A B, A C, in eodem plano exiſtentes perpen
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dicularis erit, ex defin. </
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<
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D E, vtrumque circulum A B, A C, tanget
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tertij.</
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in A; </
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A B, A C, ſe mutuo tangent in A, puncto.
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<
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ximus circulus per eorum polos deſcriptus, per
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eorum contactum tranſibit.</
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<
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">IN ſphæra tangant ſe mutuo circuli A B, C B, in B; </
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culi A B, & </
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">E, polum circuli C B, deſcribatur circulus maximus D E. </
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circulum D E, per contactum B, tranſire. </
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per tactum B, ſed ſecet circunferentiam v. </
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D, & </
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lum deſcriptus ſit, quàm circu
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lus A B, ſecabit circulũ C B,
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in F; </
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<
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A B, eundem tangit in B, pun
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cto, vltra quod circulus G F,
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ex polo D, deſcriptus eſt. </
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niam vero in ſphæra duo cir-
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culi G F, C F, ſecant in eodẽ
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puncto F, maximum circulum
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D F E, per eorum polos de-
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ſcriptum, tangent ſe mutuo in
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F, duo circuli G F, C F: </
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& </
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dictum eſt. </
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<
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bi circulos A B, C B, quàm in B, contactu, atque adeo per eorum tactũ tran
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ſibit. </
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<
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dum erat.</
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<
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