包含特征值与特征向量的提取、训练样本以及最后的识别，用谱方法计算流体力学一些流动现象的整体稳定性,对HARQ系统的吞吐量分析。- Contains the eigenvalue and eigenvector extraction, the training sample, and the final recognition, Spectral methods of computational fluid dynamics flow of some of the overall stabilit