求翻译：对于定义给出的最小二乘逼近，若误差函数r(x)在[a,b]内光滑连续可导,y(x)线性无关；最小二乘可以通过求解下列矩阵获得逼近的k次迭代解：是什么意思？

For the definition given by least squares approximation, the error function r (x) is smooth in [a, b] continuous derivative y (x) are linearly independent; least squares approximation can be obtained by solving the following matrix k times iterative solution:

For the definition of the minimum 2 times closer, if error function R(x) in the [A, B] of continuous smooth can be imported, and the y (x) Linear independent multiplied by 2 and the smallest can be resolved by the following matrix approach of K iterations:

Gives slightly regarding the definition two rides approaches, if error function r(x) smooth may lead continuously in (a, b), y(x) linear independence; Smallest two rides may k iterative solution which obtains through the solution following matrix approaches:

For definitions to least squares approximation, if error function r (x) [a,b] smooth and continuous, y (x) linearly independent; least square approximation of k can be obtained by solving the following matrix iteration solutions for: