利用matlab GUI实现的串口编程例子，使用大量的有限元法求解偏微分方程，对信号进行频谱分析及滤波，主要是基于mtlab的程序，采用累计贡献率的方法，阐述了负荷预测的应用研究,分析了该信号的时域、频域、倒谱，循环谱等。-Use serial programming examples matlab GUI implementation, Using a large number of finite element method to solve partial differential equ

对于学习优先于及有限元编程的学生、研究人员有较大帮助。(It is of great help to students and researchers who have priority in learning and finite element programming.)

理解和实施有限元方法，matlab有限元编程及代码(Understanding and Implementing the Finite Element Method Matlab finite element programming and code)