MTF_DifferentWa

lighting simulation in pscad

open cascade 二维图形生成例子程序(open cascade two-dimensional graph of sample program)

计算机辅助几何设计与非均匀有理b样条（修订版）施法中著；第6-7章附件(《CAGD & NURBS》)

CAD画施工图图解教程，简单易懂,可以快速学会使用。(CAD painting construction drawing graphic tutorials, simple and understandable.)

使用ode45函数，计算双摆模型，同时动画显示结果。并画图相应的相图. (use ode45 function, double pendulum model calculation, the results show animation. Drawing and the corresponding phase diagram.)

MATLAB下绘制三维极坐标图，输入极径和角度范围，还可以选择画图的种类，也可以画等高线图(Draw three-dimensional polar plot using MATLAB.)

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)

pscad简单分压模型。包含电压表和电流表，实时显示波形(pscad simple voltage divider models. Includes voltmeter and ammeter, real-time waveform display)

java画板，对图形编程有比较好的借鉴作用。画板的基本功能基本都有(java huaban)

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)