Elements of Trigonometry: Plane and Spherical

angle less angle of depression angle of elevation celestial circle circular measure colog common logarithm comp cos x cos² cosecant cosh cosine cosx cosy cotangent Cotg cotx curve decimal ecliptic equal equator figures Find the angle Find the distance Find the height find the logarithm find the remaining Find the value formulas FOUR-PLACE LOGARITHMS Given Hence hyperbolic functions hypotenuse included angle initial line integer L.Tang latitude light-house log cot log sin 28 LOGARITHMS OF NUMBERS loge longitude mantissa miles negative oblique triangle obtain perpendicular plane positive Prove pseudo-sphere radians right angle right triangle roots of unity secant sin b sin sin² sin³ sine and cosine sine and tangent sinh siny solution sphere spherical triangle ABC spherical trigonometry subtends an angle subtract TABLE tanc Tang tany terminal line tower TRIGONOMETRIC FUNCTIONS