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讨论了在水电站工程建设中计算蜗壳加密点时 ,建立极坐标系 ,利用拉格朗日插值法进行加密计算的方法。并用牛顿插值法对其进行误差估计分析。
The method of establishing the polar coordinate system and calculating the encryption by using the Lagrange interpolation method is discussed when calculating the spiral volute encryption point in the hydropower project construction. And use Newton’s interpolation method to estimate the error.