中文说明：插值与拟合，解方程，数据分析，是学习PCA特征提取的很好的学习资料，一些自适应信号处理的算法，三相光伏逆变并网的仿真，通过matlab代码，模拟数据分析处理的过程。
English Description：
Interpolation and fitting, solving equations, data analysis, PCA learning feature extraction of very good learning materials, some adaptive signal processing algorithm, simulation of three-phase photovoltaic grid connected inverter, through the matlab code. Simulation data analysis process.