Computing straightness error on the basis of least square method by way of smallest field method is new method in exploring the minimum condition.
用最小区域法求直线度误差，是在最小二乘法的基础上探讨的一种符合最小条件的新方法。
Based on the mathematical model of circularity error, the least square method, minimum envelope zone method and harmonic analysis method for evaluating the circularity error are treated.
本文根据圆度误差的数学模型，论述了评定圆度误差的最小二乘法、最小区域法和谐波分析法。
The mathematical models of coaxality error by evaluation of the orthogonal least square method and the minimum condition method are presented in this paper.
本文给出了同轴度误差正交最小二乘评定与最小条件评定法的数学模型。
The mathematical model to evaluate the tooth profile error of the sector by using the minimum least square method and the minimum zone method is given.
给出了齿扇齿形误差的最小二乘评定与最小区域评定的数学模型；
The mathematical model to evaluate the tooth profile error of the sector by using the minimum least square method and the minimum zone method is given.
给出了齿扇齿形误差的最小二乘评定与最小区域评定的数学模型；
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