symbol-caculation

this code for shift factor

计算数据包络分析中的ccr和bcc模型决策单元的效率值松弛变量的值等(calculate the efficiency and slack of ccr and bcc model in matlab )

潮汐调和分析程序，操作简单，新手上手快捷，方便(Tidal harmonic analysis program, easy to operate)

边缘提取，并用线段分割。内附示例说明，文件来源于作者网站(Edge Linking and Line Segment Fitting)

非线性扩展卡尔曼滤波，在catr模型中的应用。(extending kalman filtering,cstr)

SNR estimation algorithm

MATLAB数字信号处理详解，让你从数字信号处理的角度一步步认识并掌握MATLAB！(MATLAB explain digital signal processing, so that you get from digital signal processing point of view one step by step understanding and mastery of MATLAB!)

说明：  用其中一半的数据采用ANN-BP算法设计分类器，另一半数据用于测试分类器性能。(Half of the data used by ANN-BP algorithm design classifier, the other half of the data used to test the classifier performance.)

实例，简单的介绍了matlab的基本知识，适合初学者，希望对大家有帮助(Instance, a simple introduction to the basics of matlab, suitable for beginners, we want to help)

matlab files in an imortant book about finite difference method on pde