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说明：  显示图像的函数，非常有用的，哈哈，欢迎下载！(images showed a function of very useful, ha ha, welcome to download!)

测量弧的线性长度并在绘图平面标注弧长。arcdim(The linear length measuring arc and arc length dimension in the drawing plane. arcdim)

传染病模型，用于数学建模数据分析及绘图，包括SI模型、SIR模型、SIS模型图形绘制。(Epidemic model for mathematical modeling data analysis and graphics, including the SI model, SIR model, SIS model graphics rendering.)

肌电信号EMG中muap波形的产生gui程序.主要程序是TriMUAP_LAP_improve.m，其中需要调用SFAP_tri_improve.m 和mgd.m两个程序(EMG EMG in muap waveform generation gui program. The main program is TriMUAP_LAP_improve.m, which need to call the two procedures SFAP_tri_improve.m and mgd.m)

ACIS的动态链接库，是AUTO CAD的几何内核(The dynamic link library ACIS is AUTO CAD geometry kernel)

对给定的离散点，先拟合成B样条曲线，再求B样条曲线曲率(The program can help you to get the curvature of the B-spline curve from discrete points.)

系统辨识作业 考虑如下模型 z(k)-1.5z(k-1)+0.7z(k-2)=u(k-1)+0.5u(k-2)+v(k) 其中v(k)是均值为0，方差为1的白噪声。根据模型生成数据，采用递推最小二乘法对模型参数进行辨识，要求绘出各参数随时间的变化曲线。 ("System identification" computer test 。Consider the following model Z (k) to 1.5 of z (k- 1)+ 0.7 z (k- 2) = u (k- 1)+ 0.5 u (k- 2)+ v (k) The v (k) is the mean to 0, the white noise variance 1. Generate data according to the model, the recursive least squares method is adopted to model parameters are identified, draw the parameters changing with time curve. )

复杂网络的绘图工具之一Netdraw，与pajek绘制网络图各有优点。(Complex network, one of the drawing tools Netdraw, and pajek drawn network diagram has its own advantages.)

利用matlab绘制Rotman透镜，并用简单的随机搜索进行性能优化，优化部分算法比较简单，可自行改用更有效的算法(Design Rotman Lens with matlab)

CAD下VBA二次开发，用来展高程点，txt文件，已经把离散点网格化了(CAD lower VBA secondary development, to show elevation point, txt file, has the discrete points of the grid)