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In mathematics and the arts, two quantities are in the golden ratio if the ratio of the sum of the quantities to the larger quantity is equal to the ratio of the larger quantity to the smaller one. The golden ratio is an irrational mathematical constant, approximately 1.6180339887.[1] Other names frequently used for the golden ratio are the golden section (Latin: sectio aurea) and golden mean.[2][3][4] Other terms encountered include extreme and mean ratio,[5] medial section, divine proportion, divine section (Latin: sectio divina), golden proportion, golden cut,[6] golden number, and mean of Phidias.[7][8][9] The golden ratio is often denoted by the Greek letter phi, usually lower case (φ).

calculate joint entropy of two images

纯语音和带噪语音,信噪比,带噪语音的产生,语音信号的预处理一——消除趋势项和直流分量(Pretreatment with a pure voice and noisy speech signal to noise ratio, resulting in noisy speech, the speech signal- to eliminate the trend term and DC components)

说明：  EM算法代码，利用类电磁机制求解优化问题的优化算法可以达到全局最优的算法，并且不要求目标函数可微(EM algorithm code, the use of the electromagnetic mechanism to solve the optimization problem of the optimization algorithm can achieve the global optimal algorithm, and does not require differentiable objective function)

Anchored Neighborhood Regression for Fast Example-Based Super-Resolution

改进经验模态分解（EEMD）模型，主要用于非稳定类型号处理，在EMD的基础上考虑了端部效应影响，并对其进行了处理。(Embedded empirical mode decomposition (EEMD) model, mainly for the number of non-stable type of treatment, the end effect is considered on the basis of EMD and its processing.)

Examples of antireset-Windup

自适应陷波器理论经典论文，喜欢的同学可以下(Theory of classical adaptive notch filter paper, students can enjoy under the)

100kV光伏并网平均模型 MPPT使用扰动观察法(Average Model of 100 kV Photovoltaic Grid Connection MPPT uses perturbation observation method)

这是用matlab软件解决各种一元二次方程(it is use matlab software to solve a unknown equation problems)