解非线性最小二乘问题 lsqnonlin ; leastsq
解线性最小二乘问题时，通常都要解所谓正规方程。
Generally, a linear least squares problem leads to ihc solution of the so called normal equation.
本文介绍一个计算直交投影的递推公式，并介绍如何用其求解线性最小二乘问题。
A recursive formula for orthogonal projections and its application to the least squares problem are introduced in this paper.
将输出反馈极点配置问题转化为非线性最小二乘问题，用LM方法解出具有最小范数的反馈矩阵。
The output feedback pole assignment problem is transformed to a least square problem. The feedback matrix can be obtained by using LM algorithm.
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