A treatise on surveying and navigation: uniting the theoretical, practical, and educational features of these subjects (1857)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst; Toledo, Anderson, Burr, & co. · leaf 135
a sin. A By comparison, ?/— Pc b sin. B When wic and pc are cut off, nc is left. Having a and x, the angle ^LDP is easily determined. In a similar manner we can divide the triangle into any proposednumber of parts, by lines drawn from the given point P.Case 4. By lines drawn from a given point…
Surveying · Navigation
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