Theorem 1 is proved to have the property that the multivariate splines are characterized by a certain "analytic extension".
定理1指出了多元样条函数具有“解析延拓”的特征性质。
The multivariate splines were adopted to identify the drag coefficient from subsonic to supersonic, which can keep the curve smooth.
采用多段样条方法提取阻力系数，可以保证阻力曲线的一阶连续性，且能准确地辨识出从亚音速到超音速下的阻力系数。
The multivariate splines were adopted to identify the drag coefficient from subsonic to supersonic, which can keep the curve smooth.
采用多段样条方法提取阻力系数，可以保证阻力曲线的一阶连续性，且能准确地辨识出从亚音速到超音速下的阻力系数。
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