To the tangent of the Hypotenufa :2 S So fine compl. of the angle given,q^To the tangent of the leg inquired. Axiom I. Chap.2. … Jllufiration by Numbers. As the Radius EITo tangent £0*51.0763So fine E F 19-937% To tangent FH 22.8918 P R O B L. 7. 10.00000000 10.09281350 9-53*75333 9.62556683
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![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-95-69.webp)