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这是一本关于数值计算方法的书，编程工具可选用matlab和mathematica(This is a book on numerical methods, programming tools can be used matlab and mathematica)

Counter in Matlab we can create a counter on matlab with this program

Basis for the column space

分析并实现了奇异谱斜率的方法，编程实现了时域信号的检测。(And to achieve a singular spectrum analysis method of slope, programming of the time-domain signal detection.)

Image encryption using bitplanes, first image decomposed into their bitplanes,some key image applied for encryption,it will be decrypted if and only if exact key used.

说明：  PCM（脉冲编码调制）在MATLAB中仿真调试的程序(PCM (pulse code modulation) in MATLAB simulation testing procedures)

power rectifire model for symetrical systems

newmark_ode函数,求解地震波作用下的框架结构，还是挺好用的(newmark_ode Newmark_ode function is useful for solving frame structures under seismic waves.)

单音信号的一些频率估计程序，最大似然方法,Pisarenko法等。(This site presents some Matlab (tm) code for estimation of the frequency of a single, constant tone in noise. While these methods may be extended to the multiharmonic and multi-tone cases, these programs do not include this extension. )

适合初学电力系统者，能够求出系统的雅克比矩阵，便于理解课本内容(Suitable for beginners power system, able to calculate the system Jacobian matrix, easy to understand textbook content)