This article suggests a model for weighted least squares estimate for spherical surface measurement with polarradius method.
本文给出了基于极径法球面测量的加权最小二乘估计模型，并依据该模型进行测量采样点布局的优化设计。
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Third, argument-polarradius curve of polar coordinate system whose pole is geometric gravity is formed, and maximum and minimum value points are searched.
然后以重心为极点，对边缘点极坐标化，形成幅角-极径曲线，在该曲线上寻找局部极大极小值点。
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In other words, if according to the proportion of production with a radius of 30 cm of the globe, so its equatorial radius and the polarradius is only a difference of 1 mm!