二次多项式拟合大地水准面，采用matlab编写的，关于拟合出来的图像感觉有些问题。。希望大家指正-Quadratic polynomial fitting geoid, using matlab prepared some questions about the fitting out of the picture feel. . I hope you correct

这个是我做2014年深圳杯数学建模大赛（东北三省数学建模大赛与他试题相同），这个事a题的相关matlab源程序和数据包并包含部分程序结果的图片-This is what I did in 2014, Shenzhen Cup Mathematical Modeling Contest (Northeast mathematical modeling contest with him the same questions), this thing is a problem related to m