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《Acta Geodaetica Et Cartographic Sinica》 1982-03
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THE SEMI-NUMERICAL METHOD FOR THE MAPPROJECTION TRANSFORMATION

Hu Pen  
: In this paper a universal semi-numerical method for the map projection transforma- tion is put forward. Base on pointing out the general characters of the map projection functions. the polynomia1s of two variables in double Nth order are taken as mathematical model for inverse numerical solution. Also introduced in this paper are the principles, procedure and processing steps, error estimation and programs suitable for general use of the semi- numerical method, and two calculation examples are given as well.
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