3BSplinea3Spline

使用MATLAB绘制3次均匀B样条曲线，有一定参考价值(The use of MATLAB drawn 3 times uniform B-spline curve, has a certain reference value)

绘画出三阶的贝塞尔曲线, 求出曲线上各点的曲率和半径,可用于弯道设计(Drawing out the order of the Bezier curve, find the points on the curve and radius of curvature, can be used for curve design)

pscad下的双馈风机带corwbar实现低电压穿越(difg of pscad with corwbar )

数字图像处理的课程设计，装起来有些麻烦，见附带的文本文档，可以做一些简单的栅格图像处理，但结合摄影测量获得的同名像点可以进行三维观测(digital image processing of curriculum design, and put up some trouble, see accompanying text documents, they can do some simple raster image processing, but the combination of photogrammetry was the same name as the 3D point can be observed)

极其简单的MFC画图小例子，但是可以学到很多的基本知识，不错的例子，微软出品！！！！(Extremely simple MFC drawing small example, but you can learn a lot of basic knowledge, a good example, Microsoft Publisher! ! ! !)

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)

VC++几何绘图实例，如何让CDC上输出的文字、图形具有保持功能，集合类CPtrArray的使用(failed to translate)

PSCAD simulation.Investigation D-STATCOM and DVR Operation for Voltage Control in Distribution Networks with a New Control Strategy

三角形判断问题。可用于黑盒测试用例设计。(Triangle judgment. Can be used for black-box test case design.)

DDA方法的绘制直线 圆的绘制 曲线的绘制等(tu xing xue)