中文说明：使用matlab编写关于大地主题解算的程序，代码清楚，意思鲜明，一看就懂，整个代码包含有正算和反算两种，方便好用，欢迎下载（使用matlab编写关于大地主题解算的程序）
English Description：
Use matlab to write about the Earth Theme calculation program, the code is clear, clear meaning, a look to understand, the whole code contains two kinds of forward and reverse calculation, easy to use, welcome to download (use matlab to write about the Earth Theme calculation program)