A treatise on surveying, comprising the theory and the practice ; (1887)
Gillespie, W. M. (William Mitchell), 1816-1868, Staley, Cady, 1840- [from old catalog] ed · New York, D. Appleton and company · leaf 465
and from, must be so selected that the resulting trian-gles maybe well-conditioned—i. e., may have such sides andangles that a small error in any of the measured quantities willcause the least possible errors in the quantities calculated fromthem. The higher calculus shows that the triangles should… … triangulation, the unobserved angle ought to be nearly a rightangle. PLANE SURFACES,Fig. 60S. 451
Surveying
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