中文说明： 插值与拟合的matlab实现，利用最小二乘算法实现对三维平面的拟合，matlab编写的元胞自动机，matlab小波分析程序，三相光伏逆变并网的仿真，基于chebyshev的水声信号分析。
English Description：
MATLAB implementation of interpolation and fitting using least square fitting algorithm for three dimensional plane, written in MATLAB cellular automata, MATLAB Wavelet analysis and simulation of three-phase grid-connected photovoltaic inverter and analysis of underwater acoustic signals based on Chebyshev.