其中a0 = 1,精确解的残差误差为零,而最优解的残差误差尽可能小。在上述中,P0 K(x)是一个K阶多项式,其中P0 K(0) = 1,因此,P0 K  A  是矩阵A的一个多项式。

翻译:where a0 = 1 and the residual error for exact solution is zero whereas that of the optimal one is as small as possible In the above P0 Kxisa K-th order polynomial with P0 K0 = 1 and hence P0 K  A

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