PAL

Ptolemaeus Arabus et Latinus

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Johannes Regiomontanus, Epitome Almagesti

Venice, BNM, Fondo antico lat. Z. 328 (1760) · 91v

Facsimile

res ipsa postulabit.

⟨X.25⟩ 25. Radices mediorum motuum Martis certo tempori coaptare.

Iam habes medium motum in longitudine. Numera igitur tempus quod est inter instans considerationis et instans pro quo radicem fundare instituis. Huic tempori motum medium ex tabula rectificata collectum a motu medio quem dedit consideratio subtrahe si radicem ad preteritum voles, aut adde si ad futurum. Et quod resultabit erit radix cupita. Similiter pro radice diversitatis ages. Verum cum distantia, si que sit, inter duo loca media Solis et planete semper equalis sit distantie planete ab auge media epicicli, satis erit pro medio motu planete in longitudine radicem statuisse.

Finis decimi.

⟨XI⟩ ⟨Liber XI⟩