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2018 | OriginalPaper | Chapter
5. Approximate Solutions for Space Angle Problems
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Abstract
In the vicinity of original points, the geometrical property of an elliptic plane is very close to that of Euclidian plane, so, when the obliquities of all the planes and lines involved are relatively small we can use Euclidian geometry to approximately replace non-Euclidian geometry and thus greatly simplify the procedure of analyses and calculation or graphic determination of space angle problem with necessary precision; or at least, this approximate approach method can display the varying trend of various angles in mutual effects and it is convenient for optimization tool design by means of error and try.