The theory and practice of surveying. Designed for the use of surveyors and engineers generally, but especially for the use of students in engineering (1886)
Johnson, J. B. (John Butler), 1850-1902 · New York, J. Wiley & sons · leaf 243
. N=z, A = ^{.K-i- iK + iK + h^, Simpsons | Rule. 2d IV. i\^ = 4, A = - [7 {K + ^.) + 32 {K + h:) + 12/^J. 45 V.N =6, ^ - ?^ IK + K + K-\- h,+ 5 {K+ h+ K)+h,-\. This is called Weddels Rule. If a quadrant be computed by this rule, the result is o.yjgr^ instead of 0.785^^ the true value. When an… … nates of these partial areas be measured, then if ^ = commonwidth of the partial areas and h^, h^, h^, etc., their middle ordi-nates, a the first end ordinate and b the last one, we have,approximately, I. ^ = d^h. where ^h signifies the summation of all the lis.The following rules are, however,…
Surveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
