An Account of the Life, Writings, and Inventions of John Napier, of Merchiston

adjacent afterwards alſo angle appears Appendix arcs arithmetical Briggs calculations called Canon caſes circular column common computing conſtruction contains continual correſponding coſ counters curve demonſtration deſcribed difference diſcovery divided diviſion eaſily equal evident example fides figures fines firſt follows four geometrical give given greater half hand Hence hyperbola improvement infinite invention John known laſt learned leſs letter logarithms London manner margin marked means method middle moſt multiplication muſt Napier natural numbers oblique operations oppoſite plane progreſſion proportional publication publiſhed quadrant quantity radius reſpect rods root ſame ſecond ſeem ſeries ſhall ſides ſin ſome ſpherical triangle ſquare ſubtracting ſum ſuppoſed taken taking tang tangents tangents of half theorem theſe third thoſe Trigonometry units unity uſe writes zero