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interpolation
- 从随机的数据中找出其规律性,给出其近似表达式的问题,在生产实践和科学实验中大量存在,通常利用数据的最小二乘法求得拟合曲线。-From random data to find its regularity, give its approximate expression problems in the production practice and scientific experiments abound, often use the data obtained by least squares