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《Engineering of Surveying and Mapping》 1995-02
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Mohr Error Circle and Invariants of Weight Coefficients

Kou Xinjian (Central-South University of Technology, Changsha, Hunan,410083)  
The main purpose of this paper is to combine Mohr circle with analysis of positional error. The four components of weight coefficient matrix as to a point, in any rectangular plan coordinate system, can be expressed completely by the new method. The author also expounds three invariants existing in 3-d problem.
【CateGory Index】: P207
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