Clavius, Christoph
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Geometria practica
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CAPITVM, PROBLE-
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MATVM, AC PROPOSITIONVM
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HORVM VIII. LIBRORVM.</
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I.
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partium conſtructio, atque vſus multiplex. # 4. vſ{q́ue} ad 14
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II. Conſtructio Qu@adrantis, in quo Minuta quoque ac Secunda deprehendantur,
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e
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tiamſi gradus in ea ſecti non ſint. Et quo pacto eadens Min. & Sec. obtineri poſſint in
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Quadrante in 90. gradus diſtributo. Ac deni qua ratione ex data recta in pauciſſimas
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part{es} æqual{es} diuiſa abſcindi poſſint part{es} m@lleſimæ, & c. # 14. vſ ad 44
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III. Problemata varia triangulorum rectilineorum. # 44. vſque ad 50
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I.
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in plano, ſiue acceſſibilis ea ſit, ſiue inacceſſibilis, per du{as} ſta-
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tion{es} in eodem plano factas, per quadrantem metiri, quando in ei{us} extremo erecta est
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alitudo aliqua perpendicularis, etiamſi infimum @i{us} extre@um non cernatur. Atque
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hinc altitudinem quoque ipſam elicere. # 51
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<
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Datis duabus rectis ad inuicem inclinatis, punctum, in quo con-
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ueniant, inuenire. # 55
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II. Altitudinem inacceſſibilem, quando diſtantia à loco menſoris ad baſem altitu-
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dinis ignota eſt, per du{as} ſtation{es} in plano fact{as}, per quadrantem dimetiri. Atque hinc
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diſtantiam quoque ipſam eruere, {et}iamſi extrem{us} ei{us} termin{us} non cernatur. # 57
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III. Ex vertice montis, aut turris, in cui{us} ſummitate duæ ſtation{es} fieri poſſint,
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èquib{us} ſignum aliquod in Horizonte æppareat, altitudinem ipſi{us} montis turriſue di-
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m{et}iri. Atque hinc ipſam quoque diſtantiam à turris baſi, vel perpendiculo mo
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ntis ad
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ſignum illud inueſtigare. # 59
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IV. Ex vertice montis, vel turris, per du{as} ſtation{es} in aliqua haſtaerecta, velin
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duab{us} feneſtris turris, quarum vna ſupra aliam exiſtat, fact{as}, è quib{us} ſignum ali-
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quod in Horizonte videri poſſit, altitudinem ipſi{us} montis, aut turris per quadrantem.
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m{et}@ri. At{q́ue} hinc diſtantiam quoque a perpendiculo montis, velturris, vſque ad ſignum
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viſum cognoſcere. # 62
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V. Ex vertice montis, aut turris, altitudinem ipſi{us}, ſi in plano, cui inſiſtit, ſpatium.
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aliquodè directo menſoris notum ſit, per quadr antem deprehendere. # 64
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VI. Diſtantiam ab oculo, vel pede menſoris ad quoduis punctum in aliqua altitu-
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dine notatum, per du{as} ſtation{es} in plano fact{as}, per quadrantem metiri. # 65
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VII. Interuallum inter duo puncta in quolibet plano eleuato, ſiue illud ad Horizon-
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tem rectum ſit, ſiue inclinatum, per quadrantem metiri. # </
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