Philippi Lansbergii Cyclometriae novae libri dvo .. (1616)
Lansberge, Philippe van, 1561-1632 · Middelbvrgi : Ex officina Richardi Schilders · leaf 13
drantis ultimo equalem. Hoc Theorema totius Cyclometrix fundamentum continet. Quare perfpicue explicari, accuratéque demonftrari debet. — Datum itaque circulum appello, cuius radius in certa menfura datus eft,puta 10,100, 1000, 10000, 100000, 1000000, 10000000, vel quacunque alia. ! Vltimum arcum… … ducaturque ab. E. bifectionis radij punco,per C bifectionis Quadran- tis punctum recta ECF in DG tanzentem ultimiarcus D C. Dico E CF fecantem abícindere ex tan- gente D G, tangen:em D F, qua. lem ultimo quadrantis arcui D C. Demonftratio perfpicua erit fi íemiradius A E bifeceturin H, & D C…
Circle · Geometry -- Early works to 1800
Internet Archive · Fisher - University of Toronto · Public domain (published before 1931). Free to use for anything.
