Trigonometry, Plane and Spherical: With the Construction and Application of Logarithms

added alſo appears arch baſe becauſe called caſe chord circle co-f co-fine BC co-tang common conſequently COROL COROLLARY demonſtrated determine diameter difference drawn equal equal to half evident exceſs extremes fides fine fines firſt follows given gives gles great-circles greater half the difference half the ſum Hence hyperbolic logarithm hypothenuſe laſt likewiſe logarithm manifeſt meeting method minute moreover Note oppoſite parallel perpendicular plane triangle ABC preceding PROP proportion propoſed radius rectangle remainder reſpectively right-angled ſpherical triangles ſame ſecant ſecond ſee ſeries ſhall ſides ſides AC ſimilar ſince ſine ſubtracted ſum ſuppoſed tang tangent of balf Tbeor Theor THEOREM theſe thoſe verſed vertical angle whence whoſe