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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.)

PSCAD的简明使用手册，适合初学者使用。(PSCAD concise manual for beginners.)

cdma2000的下行连路仿真模块matlab模块 推荐一次(Cdma2000 downward even road simulation module recommend a matlab modules)

三次bezier曲线的绘制（其中调用pow（））。(The drawing of cubic Bezier curve (where pow ()).)

检查等高线点线矛盾工具，检查等高线节点与高程点是否矛盾(Check contour line point contradiction tool)

说明：  函数绘图程序 VB 编写 可以绘制初高中 函数图像 支持颜色，精度修改 鼠标执针定位(VB function drawing program to prepare middle and high school mapping function can support color images, the accuracy of needle positioning modified mouse bailiff)

matcom衰减振荡曲线（多线程）如果直接运行exe文件,只须将ago4501.dll和v4501v.dll加入相应的release目录即可。(matcom oscillation decay curve (multi-threaded))

信号频谱分析 1. 观测已知方波信号、正弦波信号的频谱 分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。 观测实时模拟信号（语音）的频谱 用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图(Signal spectrum analysis 1. Observing a known square-wave signal, sine wave signal frequency spectrum analysis 4KHz, 8KHz for the 50 duty cycle square wave signal, sine wave signal frequency spectrum. The recorded frequency spectrum. Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of voice, voice saved as. Wav format. Wav file of the sub-Fourier transform analysis to make. Speech is divided into syllables, it should be sub-analysis, and practical application of digital signal processing of the FFT points is limited, generally only reach 1000 points. Fourier inverse transform IFFT, to restore the signal from the frequency domain. Draw maps and voice waveform spectrum)

基于pscad的永磁直驱风机模型，自己编写，保证能跑。控制模型为简化的，请注意。(pscad based permanent magnet direct drive wind turbine model, we have written, to ensure run. To simplify the control model, please note.)

用mtlab编程绘制光学系统的光学传递函数mtf曲线(we can plot MTF curve by MATLAB )