用谱方法计算流体力学一些流动现象的整体稳定性,FIR 底通和带通滤波器和IIR 底通和带通滤波器，是机器学习的例程。- Spectral methods of computational fluid dynamics flow of some of the overall stability of the phenomenon, Bottom-pass and band-pass FIR and IIR filter bottom pass and band-pass filter, Machine learning routines.