图片遮罩层动画特效

说明：  假设对截断信号 进行采样，设采样间隔为0.5 s。利用离散傅立叶变换和FFT绘制频谱的Matlab实现(Suppose the truncated signal is sampled, and the sampling interval is 0.5 s. Matlab realization of spectrum drawing using discrete Fourier transform and FFT)

凌阳 61 4*4键盘扫描程序 可以消除重键 -Sunplus 614* 4 keypad scanner can eliminate re-key

说明：  利用MATLAB软件绘制某角度下的颜色立方体透视图(Using MATLAB software to draw a perspective view of a color cube at an angle)

说明：  用于快速计算滞回曲线屈服点的matlab代码，方便科研人员使用(Matlab code for fast calculation of yield point of hysteretic curve is convenient for researchers)

说明：  nokia5110 lcd screen library c/c++ and radio

ArcGIS 9.2 的License文件，搞gis的人一定非常需要他，大家快来下载吧．-ArcGIS 9.2 License documents, conduct gis people will definitely need him. We Come download it.

Net+移动开发例程，C# 开发手机游戏-Net+ Mobile development routines, C# Development of mobile gaming

使用C#加CSS編程開發翻頁書功能，簡便易學的手把手教學(Using C # and CSS programming to develop the function of turning pages, easy to learn hand-to-hand Teaching)

说明：  使用测井资料求得地层反射系数与子波褶积形成地震记录，对地震记录快速傅里叶变换，然后求得反滤波因子，反滤波因子与地震记录褶积，求得波阻抗(Using well logging data to obtain the reflection coefficient of the formation and the wavelet convolution to form the seismic record, and then using the fast Fourier transform of the seismic record to obtain the anti filtering factor, the anti filtering factor and the seismic record convolution to obtain the wave impedance)

这是傅里叶变换的LABVIEW程序，利用此程序可以直接得知时间域波形的频域特性！(This is the Fourier transform of the LABVIEW program, this program can learn to use time-domain waveform of the frequency domain!)