AutoCAD_2013_Crack

mfc绘图，用于绘制坐标系图形。动画的我的基本思路。(mfc draw)

ABAQUS二次开发子程序HETVAL及UMATHT，可以模拟双曲线、指数型水化热曲线的大体积混凝土水化生热。(Secondary development of ABAQUS subroutine HETVAL and UMATHT, can simulate hyperbolic, exponential curve hydration heat of mass concrete water heat metaplasia.)

用vc+mapobjects开发的源代码，实现鼠标多边形的移动(with vc MapObjects development of the source code, mouse polygon mobile)

集中介绍了HDC,CDC,CClientDC,CPaintDC,CWindowDC的使用方法和区别，绘图显示效果，区分窗口客户区。(Focus on the HDC, CDC, CClientDC, CPaintDC, CWindowDC to use and distinction, graphics effects, to distinguish the window client area.)

2次B样条曲线和3次B样条曲线的matlab绘制，适用于初学者(Two B spline curve and cubic b-spline curve realization code, debugging through matlab, apply for beginners )

ABAQUS 平面三角形单元 uel子程序(ABAQUS subroutine flat triangular element uel)

不同离焦下Mtf积分曲线随相位板参数的变化，进而用来选择合适的相位板(The Mtf integral curve along with the change of phase plate parameters to appropriate phase plate)

pscad做的整流器控制模型，运行效果良好(Rectifier control model of PSCAD, good results)

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)

零阶一类贝塞尔函数曲线，并画出其包络线的源程序(Zero-order Bessel function curve and draw the envelope of the source)