Elements of surveying and navigation : with a description of the instruments and the necessary tables (1847)
Davies, Charles, 1798-1876 · New York : A.S. Barnes & Co. · leaf 110
minus in the product. II. Place all the products which have a plus sign in onecolumn, and all the products which have a minus sign in another. III. *Bdd up each of the columns separately and take theirdifference: this difference will be double the area of the land. WITH THE COMPASS. 105… … stations. Dif. of Latitude. D. M. D. Area.+ Area. 1 ~{-cB +25a 2cAB 2* -^Bs + 27P 2BsC 3 -yD + 2n/i 2ms CD 4 -Df -f2ec/ 2cmDJ It is now evident, that cB multiplied by 2ba = cA, wilgive double the area of the triangle cAB. But cB and baare both plus ; hence, the product will be plus, and must beput…
Surveying · Navigation
Internet Archive · UMass Dartmouth, Claire T. Carney Library · Public Domain Mark 1.0. Free to use for anything.
