The paper derives a proximal formula of solution geodeticlatitude from geodetic rectangular coordinates in space. It is simpler in form and more precision Than existing proximal formulas.
本文导出的由空间大地直角坐标直接解算大地纬度的近似公式，具有形式简单，计算精度高的优点。
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The computing of latitude is the key of geodetic coordinate transformation from geocentric coordinate which conventionally USES iterative methods.