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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Tienstra formula ： ウィキペディア英語版 Tienstra formula The Tienstra formula is used to solve the resection problem in surveying, by which the location of a given point is determined by observations of angles to known landmarks from the unknown point. J.M.Tienstra (1895-1951) was a professor of the Delft university of Technology where he taught the use of barycentric coordinates in solving the resection problem. It seems most probable that his name became attached to the procedure for this reason, though when, and by whom, the formula was first proposed is unknown.〔Philip Howard (2006) ''Archaeological Surveying and Mapping: Recording and Depicting the Landscape'' (page 51 ) Routledge ISBN 1134400861 Retrieved February 2015〕 == Tienstra formula == The resection problem consists in finding the location of an observer by measuring the angles subtended by lines of sight from the observer to three known points. Tienstra’s formula provides the most compact and elegant solution to this problem.〔Porta, J. and Thomas, F. (2009). ''Concise Proof of Tienstra’s Formula.'' (J. Surv. Eng. ), 135(4), 170–172. Retrieved February 2015〕 $E\_p\; =\; \backslash frac$ $N\_p\; =\; \backslash frac$ Where: $K\_1\; =\; \backslash frac$ $K\_2\; =\; \backslash frac$ $K\_3\; =\; \backslash frac$ 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tienstra formula」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.