分别引入了解决这一问题的状态空间方法和多项式矩阵插值方法。
Both the state space method and the polynomial matrix interpolation method are introduced to solve the problem.
推导了三次多项式插值公式和三次多项式插值余项，绘制了发动机万有特性曲线。
The formulation of cubic polynomial interpolation and the remainder of cubic polynomial interpolation were deduced and the engine fuel consumption characteristics map was drawn by this method.
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。
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.
用三次多项式在硬阈值的基础上插值，使新的阈值函数保持了连续性和可导性。
The continuity and differentiability are achieved by using cubic polynomial interpolation based on hard thresholding.
通过与线性插值、多项式拟合法和神经网络逼近法的比较，可以明显看出用该神经网络算法的优越性。
Compared with linear inserting value and multinomial imitation method, it is obvious that NN has more advantages.
基于光滑的分段多项式函数和插值思想推导出一个新的光滑函数，从而可以更好地逼近正号函数。
We got a new smooth function for approximating the plus function by interpolation base on smooth piecewise polynomial functions.
本文提出了一个在三角形域上的有理布尔和插值的新方法，此方法的特点是所构造的插值函数结构简单，多项式准确集较高。
A new method of rational Boolean sum interpolation on an arbitrary triangle is developed in this paper. The structure of the interpolation function is simple.
本文提出了一个在三角形域上的有理布尔和插值的新方法，此方法的特点是所构造的插值函数结构简单，多项式准确集较高。
A new method of rational Boolean sum interpolation on an arbitrary triangle is developed in this paper. The structure of the interpolation function is simple.
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