... least-squares procedure 最小二乘法 least-squares approximation 最小二乘拟合 ; 最小平方近似法 least-squares refinement 最小二乘法修正 ...
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L least-squares approximation 最小二乘拟合
least squares approximation 最小二乘逼近
Linear Least Squares Approximation 线性最小二乘逼近
least squares approximation method 最小二乘相似法
improved moving least-squares approximation 改进的移动最小二乘近似
generalized moving least squares approximation 广义移动最小二乘近似
approximation by least squares 用最小方差法的近似 ; 用最小二乘方的近似法 ; 最小二乘方近似法
Basing on the moving least-squares approximation, the node distribution in EFM is very free.
无单元法采用基于滑动最小二乘近似的位移插值形式，节点布置变得非常自由。
However, the generalized moving least squares approximation makes require least squares approximation with regard to functional and its derivative value on all nodes.
而广义移动最小二乘近似要求近似函数及其导数在所有节点处的误差的平方和最小。
This article focuses on the topics that by connecting the the least-squares Minimization with the functional abstract space, the abstract definition of the best approximation problem is abtained.
把计算方法中的最小二乘法与泛函的抽象空间联系起来，得到最佳逼近问题的抽象提法，并在赋范线性空间探讨最小二乘法。
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