A New Treatise on Surveying and Navigation, Theoretical and Practical: With Use of Instruments, Essential Elements of Trigonometry, and the Necessary Tables, for Schools, Colleges, and Practical Surveyors
Ivison, 1880 - Navigation - 521 pages
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acres angle of elevation bearing chains chord circle circumference column compass compute cos.a cos.c cos.m cos.o cosine course and distance decimal declination arc degrees determine diff difference of latitude difference of longitude divide double area draw equal equation EXAMPLES feet find the angle find the area frustum Geom give given line given point Greenwich mean height Hence hypotenuse inches instrument latitude and departure logarithm longitude measure meridian miles moon's multiply needle object observer parallax parallel perpendicular plane sailing PROBLEM Prop proportion quadrantal radius Required the area rhumb line right ascension right-angled spherical triangle sails secant segment ship side sin.a sin.c sin.J sine slant height Solar Compass Spherical Trigonometry square station subtract sun's survey surveyor Tang tangent telescope theodolite trapezium triangle ABC Trigonometry true altitude tude vernier vertical Whence