A treatise on trigonometry and on trigonometric tables and logarithms

acute algebraic signs angle BAC angular AP AP base calculation circular measure circumscribed circle common logarithms consequently corresponding cos² cosec cot² cotangent decimal point denoted determined diff difference digits distance equal equation expressed find the angle formulæ given angle greater Hence horizontal hypothenuse integer inverse Trigonometrical functions less than 90 log-cos log-cosine log-sin log-tan loga logarithms magnitude multiple negative angles perpendicular plane positive angles positive or negative produced quantities radius right angle right-angled triangle sec² secant shew Similarly sin A sin sin² sin³ sine and cosine solid angle solution spherical triangle subtended subtracting suppose tables tan² tangent telescope theorem triangle ABC Trigono Trigonometrical Ratios values Vernier zero