中文说明：本代码是参考书《MATLAB数值分析与应用》的代码，内容充实，而且包含了书中所附习题的代码，简单易懂，便于初学者入门，是刚学习这门课的人快速入门很好的辅助材料
English Description：
This code is the reference book of the MATLAB numerical analysis and application of the code, content, and code book contains the accompanying exercises, simple, for beginners, people who are just learning this lesson quick start very good support materials