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产生两不迥频率的信号，并对两信号作复数FFT变换，找出频率为50Hz的信号对其进行能量计算(Two distant signal is not generated frequency, and two signals for complex FFT transform to identify the frequency of 50Hz signal to calculate its energy)

CIC补偿滤波器的介绍和设计方法，包含MATLAB程序设计方法。(CIC compensation filter and design methods introduced, including MATLAB programming method.)

导航栏，精选ios编程学习源码，很好的参考资料。(The navigation bar, select learning IOS programming source code, a good reference.)

用matlab实现RS（255,223）的编码，叫噪声，译码，并求出纠错个数，可以正确运行。(RS (255,223) coding using matlab, called noise, decoding, and calculated the number of error corrections, you can run correctly.)

a sample c embedded program for beginners

很炫的抽屉式侧边栏导航效果，精选ios编程学习源码，很好的参考资料。(Drawer type sidebar navigation effect of cool, selection of learning IOS programming source code, a good reference.)

A good guideline for objective c programmers.

Implementation of Ceaser Cipher in C

这是用M语言写的程序，模拟猫追耗子的matlab程序(This is written in M language program, ，Matlab program to simulate the cat chased the mouse )

objective-c textfield 下拉菜单实现(objective-c textfield drop-down menu to achieve)