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matlab实现的1范数优化代码，实现绝对值偏差最小的算法。(matlab norm to achieve a optimized code to achieve the smallest absolute deviation algorithm.)

NSArray Class Reference for Developers

GUI库飞信，精选ios编程学习源码，很好的参考资料。(GUI Fetion, selection of learning IOS programming source code, a good reference.)

cocos 2d sample using simple tile operations.

ST分段控制的iOS，精选ios编程学习源码，很好的参考资料。(ST segment control of iOS, ios programming learning source selection, a good reference.)

tab bar controller 自定义颜色和演示demo，精选ios编程学习源码，很好的参考资料。(Tab bar controller custom colors and demonstration of demo, selection of learning IOS programming source code, a good reference.)

二维码编码，QR码实现，Two-dimensional coding, QR code to achieve, Two-dimensional coding(Two-dimensional coding, QR code to achieve, Two-dimensional coding)

这是一个特效是仿照苹果电脑煮面的一个特效。这是一个特效是仿照苹果电脑煮面的一个特效。(This is a special effects is modeled as a cooking apple computer special effects. This is a special effects is modeled as a cooking apple computer special effects.)

password sensoring textfield

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)