figure_with_two_axis_with_same_grid

说明：  两个序列的互相关函数的归一化运算。 先生成两个序列，再调用。(cross-correlation function)

svkernel函数为核函数 ,容易实现 , 参照核函数的公式编写代码就成(matlab)

说明：  用MATLAB语言编写的基2 DIT FFT子程序& 用简单的速度很低的方法计算DFT(using MATLAB prepared by the two-DIT FFT routines)

《精通MATLAB图像处理 》 张强, 王正林编著 电子工业出版社 2009附带光盘(" Mastering MATLAB image processing," Zhang Qiang, Wang Zhenglin edited by the Publishing House of Electronics Industry 2009 comes with the CD-ROM)

用龙格库塔法求得微分方程的数值解；用龙格库塔法求得微分方程的数值解(Obtained by using Runge-Kutta numerical solution of differential equations obtained by using Runge-Kutta numerical solution of differential equations)

用Matlab处理GPS导航卫星观测数据的程序，也就是O文件，Rinex 2.11版本，代码仅200多行，且包含大量注释，于2017.12.2日调试通过，可顺利读取体积达10M+的O文件，读取的数据准确无误。函数调用格式： [APXYZ DeltaHEN signal_type obsdata] = read_obs(‘krgg3340.17o’)(Using Matlab to process GPS navigation satellite observation data program, that is, O file, Rinex 2.11 version, the code is only more than 200 rows, and contains a lot of annotations. It debugged on 2017.12.2 day. It can smoothly read the O file with volume up to 10M+, and the data read is accurate.)

mathews数值分析书的源代码，用matlab编写，第一章第八部分。(mathews numerical analysis of the book' s source code, using matlab, the first part of Chapter VIII.)

用粒子群求解最优化问题的一个粒子，并画出迭代次数与最优解的关系(For solving optimization problems with particle swarm particle, and draw a relationship between the number of iterations and the optimal solution)

This code is about plotimaging of seismic data.

此算法描写了如何选择初始轮廓的位置，以及怎样控制初始轮廓的演化。(This algorithm describes how to select the location of the initial profile, and how to control the evolution of the initial contour.)