Plane trigonometry, and its application to mensuration and land surveying. Accompanied with all the necessary logarithmic and trigonometric tables (1852)
Perkins, George R. (George Roberts), 1812-1876 · New York, D. Appleton · leaf 161
cask rv. … §85.] SURVEYING. 151 Equations (1), (2), (3), and (4), when modified as below,embrace the four solutions. AH = 2 be sin. m x <?, sin. (m ± n) h- AH , ..tang, q = ^ + AH x cotan. J (p q= n), Ap = cos. H (j?Tft)+g] x 5 sin. m (10 (2.) (3-)(4.) Equation (1) remains the same for the four cases. In…
Plane trigonometry · Surveying
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