Plane and Spherical Trigonometry ...

add the logarithms angle of elevation angle opposite azimuth Calculation celestial concave celestial equator circle cosec cosine cube root ecliptic equation EXAMPLES find a fig find the latitude following expressions formula geometrical series given angle given sides Given the sun's given to find greater than 90 half difference half sum half the sum haversines headland heavenly body horizontal line hour angle less than 90 meridian altitude miles natural number natural versine number denoting object observed the angle perpendicular plane triangle ABC quantity regular polygon required angle required the angles required the distance required the height required the latitude required the sides Required the value right angled triangle right ascension sextant ship spherical triangle ABC SPHERICAL TRIGONOMETRY stations steeple subtract sun's declination tabular logarithms tangent theodolite third side Three sides tower triangle ABC given yards