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a source code for calculate entropy in matlab

lm算法，非线性最小二乘算法，进行参数估计及非线性方程计算(The LM algorithm, the nonlinear least squares algorithm, used for parameter estimation, and nonlinear equations)

介绍eeacc pacc pacs,发表国外期刊或者核心期刊都必须要的(Introduction eeacc pacc pacs，Post foreign journals or periodicals must be the core)

三相PWM整流器并网系统，包括锁相环，坐标变换，解耦控制算法，SPWM算法((Three-phase grid-connected systems, including phase-locked loop, coordinate transformation))

基于matlab的直方图处理，增强细节处理效果，暗处细节可以得到更好体现，并显示处理前后的直方图(Matlab histogram processing to enhance the details of the treatment effect)

基于MATLAB编写的集对分析与K均值聚类相结合的环境风险评价方法，熵权法作为指标权重确定方法。(MATLAB based on set prepared for analysis of environmental risk assessment and K-means clustering method of combining, entropy law as a method of determining the index weight.)

说明：  数字滤波器分解为全通，延时滤波器计算代码(The digital filter is decomposed into a full-pass, delay filter calculation code)

PID regulation as an example of one of most polupalar methods of usage classical control system methods. This is differnet because it contains a derivative unit (D).

c++实现的通信录，实现添加、删除、查找、修改等功能(communications recorded c++ implemented add, delete, search, modify functions)

用MATLAB实现“商人怎样安全过河”模型求解(Using MATLAB to solve“how to secure traders to cross the river” model )