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最小二乘法,这一門属于应用数学領域的学科,由18世紀末叶至19世紀初期,被高斯(C.F.Gauss)与勒赴德(A.M.Legendre)开创以来,自始至今,它一直是带有与实际相紧密联系的特色。它来自測量学,并大量地在測量学中发揮了它的愈来愈多的作用,而且被广泛地应用到实驗学科里去了,因为大量实驗数据的处理,恰好可以采用最小二乘法才能最为可靠。因此,最小二乘法,对于測量工作者、实驗家們及統計人員处理数据来說,是一个十分需要的知識。虽然它的理論基石需鋪延到概率論的范畴,但究其具体方法的步驟而言,在較为基本的地方主要还是
Least-squares method, this subject belongs to the field of applied mathematics, from the end of the 18th century to the beginning of the 19th century, it was founded by CFGauss and AMLegendre, and it has been with and practical since its inception. Closely related features. It comes from surveying and has played a greater role in measuring science and technology, and it has been widely applied to experimental disciplines. Because a large amount of experimental data can be processed, the least squares method can be used. The most reliable. Therefore, the least squares method is a much needed knowledge for measurement workers, experimenters, and statisticians to process data. Although its theoretical foundation needs to be extended to the category of probability theory, in terms of the steps of its specific method, it is mainly in the more basic places.