引用本文: 张学廉. 嵌套系数法——精密解算任何距离大地主题[J]. 武汉大学学报 ( 信息科学版), 1985, 10(1): 78-91.
Zhang Xuelian. The Nested Coefficient Method——For the Accurate Calculation of Direct and lnverse Geodetic problems of Any Length[J]. Geomatics and Information Science of Wuhan University, 1985, 10(1): 78-91.
 Citation: Zhang Xuelian. The Nested Coefficient Method——For the Accurate Calculation of Direct and lnverse Geodetic problems of Any Length[J]. Geomatics and Information Science of Wuhan University, 1985, 10(1): 78-91.

## The Nested Coefficient Method——For the Accurate Calculation of Direct and lnverse Geodetic problems of Any Length

• 摘要: 本文推导出适于电算,精器求解任何距离二类大地主题的嵌套系数法用于正、反算的实用公式。其适用范围为1~2万公里,理论精度可达10-5秒和1毫米以上。在仅有10位有效数字的情况下,如使用sharp pc-1500袖诊电子计算机时,其实际精度可至10-4秒和毫米级。

Abstract: The nested coefficient method for solving two geodetic problems has been developed and the practical formulars of direct and inverse solutions are given.They are suitable well to the electronic computation and can be used to any length from 1 to 20,000 Km.The theoretical accuracy can be over 10-5 sec.for both the latitude and the longitude and 1 mm to the distance respectively.But the practical accruacy of 10-4 sec.and several mm.may be obtained respectively,if the numbers of the effective figures are 10 and the Sharp pc-1500 computher is used.

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