Orontii Finei delphinatis, liberalivm disciplinarvm professoris regii, Protomathesis : opus uarium, ac scitu non minus utile quàm iucundum, nunc primùm in lucem foeliciter emissum : cuius index uniuersalis in uersa pagina continetur (1532)
Fine, Oronce, 1494-1555 · Parisiis : Impensis Gerardi Morrhij & Ioannis Petri · leaf 200
AVTEM odogonum infcriptum circulo fit medium proportionale inter duo quadrata quorum unum circufcribitur, alterum uero eidem infcribitur TDcmor(ir:lt;o circulouta demonftratur, Sit datus circulus B c d e , circum A centrit figura* prsrecdtnti* ro tusiintra quem defcribatur quadratum B C D E, per 6… … B C A F ad redos fefe diuidere angulos,inpudo uidelicet 0;funt enim dimetien tes quadrati A B f c. Triangula igitur A C F Si A C 0,crunt inuicem xquiangula. nam angulus c a F fit utricp triangulo communis.Si A C f angulus aequalis angu¬ lo A o C nempe redus redo: Si reliquus igitur ACO reliquo A F…
Mathematics -- Early works to 1800 · Cosmography -- Early works to 1800 · Sundials -- Early works to 1800 · Astrolabes -- Early works to 1800
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-112-296.webp)
