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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.
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曲线拟合2.txt