Stevin, Simon
,
Mathematicorum hypomnematum... : T. 4: De Statica : cum appendice et additamentis
,
1605
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A*DDITAMENTI* S*TATICÆ* P*ARS QUARTA*
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longus, A C prælongum ejuſdem
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capitellum, in cõtinuata A B: </
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tra A D ſcapus breviuſculus, & </
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A E ejus capitellum breviuſculum;
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proportionales ſint. </
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<
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ipſi A B æqualis A F, & </
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A C: </
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perpendiculares, F H, G C. </
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deinde A K æqualis rectæ A D
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tantum attollatur ut K L perpen-
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diculatis ſit æqualis ipſi H F. </
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<
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liter ut altrinſecus A M, in con-
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tinuata K A, æquetur ipſi A E,
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& </
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M N. </
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">his conſtitutis, ponamus
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annellum B ſcapi longioris ab B
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adductum in F ut diſtantia à prio-
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ri ſcapi ſitu ſit F A: </
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<
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tem ſcapi annellum ab D didu-
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ctum in K, ut diſtantia ſit L K. </
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<
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ductibus ocellus majoris ſcapi mi-
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grabit ab C in G, eritq́ue diſtan-
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tia à priori ſitu I G: </
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capitelli minoris diſcedet in M, cu-
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jus à capitelli primo ſitu diſtantia
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eſt M N. </
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L K pro manus ductibus (quiaillis
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æquantur) cenſenda ſunt: </
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IG M N pro pſelliorum motibus-
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quod illis æquentur. </
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ſint demonſtrandum eſt N M æ,
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quari ipſi I G. </
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ſitum nobis fuerat, par preſſus vio-
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lentia neceſſariò concluditur.</
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ſitu reſpondent proportionalia,
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Sic A K ad A M eſt, ut K L ad M N.</
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<
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erunt proportionalia.</
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ſed ut A F ad A G, ſic A K ad A M. </
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ut A K ad A M, ſic F H ad G I.</
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<
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ut A K ad A M, ſic K L ad GI.</
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