Newton

matlab程序非线性优化设计方法时下流行的关于非线性规划的源程序,包括SQP方法、乘子法程序、二次规划、非线性最小二乘法、共轭梯度法、拟牛顿法、线搜索技术、信赖域方法、最速下降法与牛顿法等(matlab program nonlinear optimization design method popular on nonlinear programming source code, including the SQP method, the multiplier method procedures, quadratic programming, nonlinear least squares method, the conjugate gradient method, quasi-Newton method, the linesearch technology, trust region methods, the steepest descent method and Newton method)

用于计算两幅图像之间结构相似性度量的MATLAB源码(An implementation of the algorithm for calculating the Structural SIMilarity (SSIM) index between two images)

自己实现的一维、二维DFT。优点：变换后的低频分量在中间，弥补了matlab库函数的不足（高频分量在中间）(Realize their own one-dimensional, two-dimensional DFT. Advantages: low-frequency components after the transformation in the middle, made up for the inadequacy of matlab library function (high-frequency component in the middle))

说明：  用牛顿下山法求解方程：下山因子在计算过程中可以变动，一般选择下山因子时从1开始，逐次将减半进行试算，直到能使下降条件成立为止。若当计算到某步时取不到满足要求的值（或值小到无法容忍），这时称“下山失败”，需要另取初值重新算起。(Descent method with Newton' s equation: down factor in the calculation process can change, usually selected from the 1 start down factor, will be halved for successive spreadsheet until the can down the conditions established. If when calculating the time to take a step not meet the requirements of the value (or values ??too small to tolerate), then the &quot down failed&quot , you need an alternative initial re-counting.)

无线传感器网络加权质心自定位算法中加权质心算法仿真(Centroid algorithm simulation in wsn)

k-means 算法接受输入量 k ；然后将n个数据对象划分为 k个聚类以便使得所获得的聚类满足：同一聚类中的对象相似度较高；而不同聚类中的对象相似度较小。聚类相似度是利用各聚类中对象的均值所获得一个“中心对象”（引力中心）来进行计算的。(k-means algorithm accepts input k then n data objects into k clusters in order to make clustering satisfy obtained: the objects in the same cluster high similarity different clustering object similarity small. Cluster similarity is the use of the mean of each cluster of objects that get a " central object" (center of gravity) to perform the calculation.)

Matlab函数库，可以快速查找函数的意义。形式例如：errorbar 带误差限的曲线图(Matlab library, you can quickly find the significance of the function. For example: errorbar ：form with error limit curve)

Build a Graphical User Interface to show off * uicontrols.

该资料简述了matlab在数字信号处理中的应用(The information outlined matlab in digital signal processing applications)

MATLAB 解决 隐函数 的 方法 对解方程比较有用 implot(MATLAB to solve implicit function method of solving equations more useful implot)