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已知美国从1920-1970年的人口表如下: 年份 1920 1930 1940 1950 1960 1970 人口(千人) 105711 123203 131669 150697 179323 203212 (1)用表中数据构造一个5次Lagrange插值多项式,并以此估计1965、2002年的人口。 (2)用Newton插值估算1965、2002年的人口数。-Known in the U.S. population from 1920-1970 are as follows: Year 1920 1930 1940 1950 1960 1970 Population (thousands) 105711 123203 131669 150697 179323 203212 (1) using the table data to construct a 5 Lagrange interpolation polynomial, and to estimate the population of the year 1965,2002. (2) using Newton interpolation to estimate the population of a few years 1965,2002.
Date : 2025-12-27 Size : 2kb User : lz
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