In this paper, by using the analysis of standard interpolation polynomial, we give the theory of truncatingerror on nonstandard interpolation polynomial.
通过对标准形式插值多项式的截断误差分析，给出了非标准形式插值多项式的截断误差公式。
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The improved algorithms can reduce significantly the truncated error of the truncating unit pulse (or step) response time-sequence of the controlled process as the internal model.