But with the increasing of the order of interpolation polynomials, serious oscillation phenomena will appear, which will increase the computational error and affect instabilities of computations.
但是，随着插值多项式次数的提高，计算误差会增大，出现龙格现象和不稳定。
Interpolation methods so far available do not give the interpolating functions directly in the form of algebraic polynomials.
现有插值方法，一般都不把插值函数直接表示为代数多项式。
Local interpolation model is used to replace Zernick polynomials for surface contour error fitting at the grinding stage.
提出了线性插值法代替惯用的泽尼克多项式拟合用于表面的精磨。
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