s-functiopn--1

Implementation of Ceaser Cipher in C

basic code when you learn objective-c.

本书籍讲诉的是objective-C编程中的ARC规范，是高手的必看书籍。(This book stresses that the ARC specification of objective-C programming, is the master of the books.)

Detection of QRS wave of more detailed procedures, including the starting point of QRS wave, peak detection.

史密斯圆图的应用, 包括阻抗匹配，计算方法等(Smith chart applications, including impedance matching, calculation methods)

A good guideline for objective c programmers.

数字图像处理，用MATLAB进行高斯滤波(Digital image processing using MATLAB to Gaussian filtering)

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)

基于ios3.2开发的显示武汉市免费自行车站点的小程序 很不错的学习iphone开发的代码(Developed based on ios3.2 free bike show in Wuhan is a good site to learn applet code iphone development)

二维码扫描应用demo，精选ios编程学习源码，很好的参考资料。(Two dimensional bar code scanning application demo, select learning IOS programming source code, a good reference.)