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用于将MNIST数据文件转换成bmp图像和txt文件的matlab程序，程序中有详细注释说明，简单易用。已经测试过，正确无误。(Matlab code for translating MNIST data set files to bmp pictures and txt files. It has been proved to be correct through test.)

电梯概率问题 可以在准备数学建模的时候作为练习资料(mathmodeling)

matlab图形界面设计，程序已有详细的标注和解释，便于学习。(This presents graphical interface design about matlab, including a detailed annotation and interpretation, to facilitate learning.)

optiaml facts allocation using evolutionary algorithm

implement onDraw and draw a rectangle in a random color with the name of the class.

skin detector can detect skin color

用matlab 实现离散时间傅里叶变换的例程，方便初接触者使用。这是我dsp课的大作业(Using matlab discrete-time Fourier transform routines to facilitate early contact to use. This is my big job dsp lesson)

利用Matlab及施工中采集的点云数据绘制点云图(Matlab and point cloud data collected in the construction drawing point cloud)

移频法实现啸叫抑制，通过对回声信号做移频，使得回声信号加上输入信号不会再某一频点能量过大产生啸叫(Frequency shift method to achieve howling suppression, echo signals by frequency shift do so echo signal plus input signal will no longer produce a certain frequency can be excessive howling)

说明：  帧间差分法处理图像视频，可用于运动目标的检测(Image processing video frame difference method can be used for the detection of moving targets)