biquadratic polynomial

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[网络] 双二次多项式

The formula shows that the propagation error from biquadratic polynomial is the same as the error from linear polynomial.
公式表明，不完全双二次多项式的DEM传递误差与双线性多项式的传递误差相同。
Based on the interpolation method, a model to represent the surface of a grid DEM based on biquadratic interpolation polynomial is obtained, and a propagation error formula by the polynomial is derived.
基于函数插值方法，得出了基于不完全双二次插值多项式的规则格网数字高程模型（DEM）的表面表达模型，并推导了相应的传递误差公式。
The Surface Propagation Error Model of DEM Based on Biquadratic Interpolation Polynomial
基于双二次插值多项式的DEM传递误差模型
In calculating elastic deformation, the pressure distribution is approximated by a piecewise biquadratic polynomial, and singularity of integral is overcome by a transformation of the polar co ordinates.
在计算弹性变形时，对二维的压力分布作双二次插值逼近，并通过极坐标变换克服了积分的奇异性。
The lamina thickness distribution is described by a biquadratic polynomial, whose six coefficients are chosen to be the design variables.
铺层的厚度分布由一个双二次多项式描述，其6个系数被用作设计变量。