Directorivm generale vranometricvm : in quo trigonometriae logarithmicae fvndamenta, ac regulae demonstrantur, astronomicaeq[ue] supputationes ad solam ferè vulgarem additionem reducuntur : opus vtilissimum astronomis, geometris, arithmeticis, perspectiuis, architectis, praecipuè militaribus, mechanicis, geographis, nec non ipsis philosophis naturalibus (1632)
-circuli.: 6 Tan gens alicuius arcus dicitur reàa;quae. suna extremitatem costingie, inter. contattum:& concurfum cam radio per alte... terum extremum extra cireulum produ&o;, comprehenfa 5 ad quod” capiendun aflumatus iterunà ’fcliema,pofi rl; Cap: 2.p.te. ergo cliem oe bf, a tangés arcus,b di ité… … tem
Trigonometry -- Early works to 1800 · Logarithms -- Early works to 1800 · Logarithms · Trigonometry
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
![An illustration from Directorivm generale vranometricvm : in quo trigonometriae logarithmicae fvndamenta, ac regulae demonstrantur, astronomicaeq[ue] supputationes ad solam ferè vulgarem additionem reducuntur : opus vtilissimum astronomis, geometris, arithmeticis, perspectiuis, architectis, praecipuè militaribus, mechanicis, geographis, nec non ipsis philosophis naturalibus, 1632, leaf 113](https://img.insideoutlibrary.com/img/1024/ia-directorivmgener00cava-113-0.webp)
