RK3-matlab

matlab编写的黄金分割法求极值，C语言写鲍威尔修正算法，对n阶n次函数都实用，详细说明。(Matlab written in golden section method extremum, written in C language Powell correction algorithm, function of order n n practical details.)

基本原理就是首先求解出连续系统微分方程的近似解，然后对系统的Jacobian矩阵进行QR分解，计算Jacobian矩阵特征值的乘积，最后计算出LE和分数维(The basic principle is to first find the approximate solution of differential equations continuous system, then the system will be on the Jacobian matrix QR decomposition product Jacobian matrix computing eigenvalues, and finally calculate the fractal dimension LE)

说明：  采用蒙特卡罗法计算单机械臂工作空间，得到三维点云图。(The working space of single arm is calculated by Monte Carlo method, and the three-dimensional point cloud is obtained.)

利用中心差分法计算无阻尼结构动力响应，并作图(Using central difference method to calculate the structural dynamic response)

结构动力分析用matlab计算平面桁架的特征值(Structural dynamic analysis using matlab calculating eigenvalues ​ ​ of plane truss)

压缩图像，本代码主要介绍压缩图形的主要步骤，非常简单有很明了，非常适合阅读(The compressed image, the code describes the main steps of compressed images are very clear, very simple, very suitable for reading)

matalb实现的协同过滤，里面包含很多重要算法，都已经实现(matalb achieve collaborative filtering, which contains many important algorithms have been realized)

特征点提取，一个关于harris算子提取图像特征的程序。。 做了些许改动(Feature point extracting，Harris operator on image feature extraction process. . Make a few changes )

matlab中运用hough变换，设定恰当的阈值，将超过阈值的点在三维空间标示出来&将三维参数矩阵根据半径的不同做成不同的帧，制作成视频(hough transform matlab in use, set the appropriate threshold, will exceed the threshold point in three-dimensional space marked out & three-dimensional parameter matrix made of different frames depending on the radius, made into video)

SVPWM的原理simulink模型，仿真速度稍微有些慢但是效果很好(SVPWM principle simulink model, simulation speed somewhat slow but very good)