包括面积、周长、矩形度、伸长度，用谱方法计算流体力学一些流动现象的整体稳定性,雅克比迭代求解线性方程组课设。- Including the area, perimeter, rectangular, elongation, Spectral methods of computational fluid dynamics flow of some of the overall stability of the phenomenon, Jacobi iteration for solving lin