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chomsky文法判断，0，1，2，3四种文法类型的判断(chomsky)

製作4層樓電梯 可以控制在內部開門關門 外部則是上下按鍵使用(4 floors produced inside the elevator door closing can be controlled externally using the up and down keys)

沙威的97小波变换程序,具体97小波的资料，大家可以下载相关论文。(shawei s 97 lifting wavelet transforming program code)

watermaking algorithm to crypting image to images

根据直扩原理，首先有随机数发生器产生一系列二进制信息数据（+1，-1），每个信息比特重复Lc次，Lc对应每个信息比特所包含的伪码片数，包含每一比特Lc次重复的序列与另一个随机数发生器产生的PN序列c(n)相乘。然后在该序列上叠加高斯白噪声和形式为i(n)=Acosw0n余弦干扰下次信号，切余弦干扰信号的振幅满足条件A<Lc。在解调器中进行与PN序列的互相关运算，并且将组成各信息比特的Lc个样本进行求和。加法器的输出送到判决器，将信号与门限值0进行比较，确定传送的数据为+1还是-1，计数器用来记录判决器的错判数目。(According to the principle, first some straight expansion random number generator produces a series of binary data (+ 1-1), each information bit repetitive Lc times, Lc for each information bit contains PN code piece count, embraces each bit Lc times repeated sequence and another random number generator produces PN sequence c (n) multiplication. Then in the sequence superimposed on gaussian white noise and forms as I (n) = Acosw0n cosine interference next time signal, cut cosine interfering signal amplitude satisfy conditions A < Lc. In the modem with the cross-correlation operation PN sequence, and the information will comprise the Lc a sample bits peace. The output of the adder judgment device, will signal to compare with threshold 0 data transmitted, determine for+ 1 or-1, counter is used to record the number victimised judgment. )

提供一种计算杆件内力和位移的matlab有限元算法(A finite element method for calculating the internal force and displacement of the bar provided.)

Filter Design using matlab

secdond version pf DSPview code on matlab

小波分析，对振动信号的分析，用于提取故障特征。(Wavelet analysis, the analysis of vibration signals for extracting fault feature.)

matlab和stk交互的一个例子，其中建立了图形和图表(matlab and interact stk)