This paper deals with the multivariate vector analysis of quality data by geometric transformation, rotating coordinates and computationof the principal component of initial variables.
本文讨论多元质量数据的矢量分析方法,几何变换,坐标旋转和初始变量的主分量计算不同变量的主分量值。
2
The computationof natural convection in the annulus between horizontal concentric cylinders using spectral element method in polar coordinates is presented in this paper.
提出了将谱元方法应用到极坐标系下,利用极坐标系下的谱元方法求解环形空间内自然对流问题。
3
The use of perfectly matched layer (PML) in cylindrical coordinates avoids the wasted computation.