Clavius, Christoph
,
Geometria practica
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GEOMETR. PRACT.
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<
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xml:space
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">cognita erit diſtantia F G, quæſita in partibus turris notæ.</
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<
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autem vmbra verſa ſecetur in E, & </
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Vt vmbra verſa \\ D E, # ad latus D A, par- \\ tium 1000. # Ita A F, altitudo turris co- \\ gnita # ad F G,
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<
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">efficietur quo que nota eadem diſtantia F G, in partibus turris cognitæ.</
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<
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<
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quadratum ſtabile eandem quo que diſtantiam adipiſceris. </
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nim rurſus turris quæpiam D E, & </
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igitur dio ptra ſecet latus vmbræ rectæ in I. </
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Vt latus quadrati \\ AD, 1000. # ad vmbram \\ rectam D I: # Ita altitudo A E, ex turre & la- \\ tere quadrati A D, conflata. # ad E G,
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<
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autem dioptra per C. </
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<
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diſtantia E H, altitudini A E, notæ æqua-
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lis.</
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denique vmbra verſa interſecetur
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in K; </
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Vt vmbra verſa \\ B K, # ad latus quadrati \\ 1000. # Ita altitudo nota A E, # ad E F,
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<
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">inuenietur diſtantia EF, in partibus altitudinis A E,</
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enim omnia in 2. </
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ſi altitudo turris cognita non ſit, inueſtiganda ea primum erit per
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problema 8. </
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fieri poſsit, per chordam aliquam cum appenſo perpendiculo demiſſam explo-
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randa. </
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<
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ſine cognitione turris idem aſſequemur ea ratione, quain problem.
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tudinem ſit ignota. </
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tien da FG, effi ciemus illud, ſi in haſta aliqua erecta d A, fiant duæ ſtationes o-
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culi, in a A. </
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<
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& </
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<
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ratione, ſi in 7. </
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inueniemus eam, ſi in plano ſummitatis turris fiant duæ ſtationes oculi in A, a.
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figuræ problem. </
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dines fiant A F, A F, latus quadrati D C, ad vmbram rectam, & </
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<
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pertinebit, vt initio huius libri in conſtru ctione quadrati Num. </
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hanc diſtantiam longè facilius in ſcholio præcedentis problematis in-
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uenimus per vnicam ſtationem, vt patuit in diſtantia EF, & </
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<
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