中文说明：
matlab科学计算的几乎所有数学算法以及仿真。每一个m文件在我学习的时候都验证了其正确性。前面的比较简单，逐步深入。另外对部分算法本人在学习中做了优化，更简洁。
English Description：
Matlab scientific calculation of almost all mathematical algorithms and simulation. The correctness of each m file has been verified when I study. The previous ones are relatively simple and go deeper step by step. In addition, I have optimized some algorithms in learning, which is more concise