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对边界进行二次取样源码，用canny等算法提取一次边界后，点数过多，不利于描述形状，用这个代码可以实现二次取样。(The boundary of second sampling source, such as canny extraction algorithm with a boundary, too many points, which describe the shape, use this code can realize the second sampling.)

最小二乘曲线拟合 可以拟合曲线 得到所拟合的系数 GUI界面(least-square Curve fitting)

matlab求取发动机及电机最优工作曲线的代码(strike the optimal curve engines and motors code by matlab)

一个matlab程序，程序不大，可以实现播放THU校歌的功能。(A matlab program, the program is not, can achieve the function of the school song played THU.)

说明：  MPPT最大功率点跟踪控制，搭建了并网历程，并且使用MPPT控制。(MPPT maximum power point tracking control, build the grid-connected process, and use MPPT control.)

张德丰《MATLAB 小波分析》光盘源代码(Zhang Defeng " MATLAB wavelet analysis," the source code CD-ROM)

本次实验是要我们先产生心电信号，再加噪声再滤波。由一个心电信号数据表输出心电信号，由于已知的心电信号有噪声，所以我先将信号进行滤波，得到正确的心电信号。再加噪声，通过滤波可以得到高频和中频噪声，将原信号加上噪声显示再滤波。每次的时域信号都画出了他们相应的频谱，便于观察。每次的滤波我也尝试了不同的滤波器。(This experiment is to produce our first ECG, together with noise and then filtering. ECG data from a table output ECG, ECG as a known noise signal is filtered first, I get the correct ECG. Plus noise can be obtained by filtering high-frequency and intermediate frequency noise, the original signal plus noise shown again filtering. Time-domain signals each draw their corresponding spectrum, easy to observe. Every time I try to filter the different filters.)

基于比例积分的蔡氏电路控制仿真，第一平衡点处镇定(Chua s circuit based on proportional integral control simulation, the first stabilization of the equilibrium point)

Matlab不仅具有强大的数值运算功能，也同样具有非常强大的二维和三维图形绘制功能，尤其擅长于将各种科学运算结果的可视化。计算的可视化可以将不直观的数据通过图形来表示，从而发现其中的内在关系。Matlab的图形命令格式简单，可以使用不同的线形，色彩、数据点标记和标注等来修饰(Graphic Design)

静态电压稳定临界点的使用求解方法，基于主导节点法的分岔类型检验法(Static voltage stability critical point of use solving method, based on the dominant node bifurcation type-test method)