combin

微分方程绘制三维图，六个相互耦合的微分方程，绘制其中两个量变化对第三个量影响关系的三围图(three-dimensional figure of differential equation )

说明：  最优化算法中得拟牛顿法和共轭梯度法,以及Armijo型搜索和最优步长搜索。(Congradient and NiNewton algorithms in optimazation based on MATLAB)

Load 3D image from a group of 2D dicom image files.

除趋势波动分析，非常好的分析工具。除趋势波动分析，非常好的分析工具(distrend fluctuation analysis, very good analysis tool)

ecg signal generation using fourier series

binary frequency division multiplixing

说明：  LIBSVM是台湾大学林智仁(Lin Chih-Jen)副教授等开发设计的一个简单、易于使用和快速有效的SVM模式识别与回归的软件包，他不但提供了编译好的可在Windows系列系统的执行文件，还提供了源代码，方便改进、修改以及在其它操作系统上应用；该软件还有一个特点，就是对SVM所涉及的参数调节相对比较少，提供了很多的默认参数，利用这些默认参数就可以解决很多问题；并且提供了交互检验(Cross Validation)的功能。(LIBSVM Taiwan University, Lin Zhiren (Lin Chih-Jen) and associate development and design of a simple, easy to use and fast and efficient SVM pattern recognition and regression of the package, he can not only provide a compiled implementation of the system in the Windows family of documents , also provides the source code to facilitate the improvement, modification and other operating systems applications the software has a feature that the parameters of the SVM involves relatively small adjustment to provide a lot of default parameters, use the default parameters on can solve many problems and to provide a cross-validation (Cross Validation) feature.)

Bode diagram of LCL Filter with damping resitor and Courses of DSP in Polytech Nantes France

描绘曲线，看曲线收敛性,稳定的系统是在时间的无限长时，曲线收敛，证明系统稳定，曲线发散，证明系统不稳定(we can look at zhe line and realize it is stable or not!)

改进cholesky分解，在cholesky分解基础之上进行改进，不需要分解的矩阵正定条件(Improve the cholesky decomposition, cholesky decomposition in the basis for improvement, positive definite matrix conditions without decomposition)