image-filter

通过光速不变原理介绍相对论时间膨胀公式和长度收缩效应公式，并举例进行了说明。用曲线显示时间膨胀与物体速度的关系，显示长度收缩与物体速度的关系。(Through the principle of constancy of light, relativistic time dilation formula and length contraction effect formula, and examples are described. Curve shows the time dilation and the speed of the object, showing the length contraction and the speed of the object.)

自己写的关于窗函数的matlab程序,便于学习滤波器的设计(window function and spectrum analysis)

机器人PID控制重要程序，内含控制率设计，重力补偿等(PID control program of robot)

this pgm read text from file and encrypt using rail fence technique.Encrypted text written to file which is read and decrypted using railfence

说明：  最小均方濾波器是一類可通過最小化誤差訊號之均方值而修正濾波器係數，以類比所需理想濾波器的自適應濾波器，其中作為修正依據的誤差訊號為理想參考訊號與實際輸出訊號之差。該種濾波器所用之最小均方法只以當前之訊號誤差值為準進行修正，是一種隨機梯度下降法。最小均方法係由斯坦福大學的Bernard Widrow教授及他的首位博士班學生Marcian Hoff於1960年提出。最小均方濾波器屬於常見的自適應濾波器種類之一。(The minimum mean square filter is an adaptive filter that can correct the filter coefficients by minimizing the mean square value of the error signal to analogize the desired ideal filter. The error signal used as the correction reference is the ideal reference signal and the actual output. The difference between the signals. The minimum averaging method used in this kind of filter is only corrected based on the current signal error value, which is a stochastic gradient descent method. The minimum mean method was proposed in 1960 by Professor Bernard Widrow of Stanford University and his first PhD student, Marcian Hoff. The least mean square filter is one of the common types of adaptive filters.)

计算一维光子晶体的投射和反射，TM模式，PML边界条件，总场散射场模式，高斯脉冲，并已优化(One-dimensional photonic crystal projection and reflection, PML boundary conditions, the total field scattered field model, Gaussian pulse, and has been optimized)

老外编的标准pso算法的matlab工具箱，该工具箱将PSO算法的核心部分封装起来，提供给用户的为算法的可调参数，用户只需要定义好自己需要优化的函数(计算最小值或者最大值)，并设置好函数自变量的取值范围、每步迭代允许的最大变化量(称为最大速度，Max_V)等，即可自行优化。(Part of the standard of foreigners pso algorithm matlab toolbox, the toolbox will be the core of the PSO algorithm package together to provide to the user adjustable parameters for the algorithm, users only need to define their own needs better optimization function (calculation of minimum or maximum value), and set a good function, since the range of variables, each iteration step the maximum allowable variation (known as the maximum speed, Max_V) and so on, can be self-optimizing.)

现在飞的稳定的apm给空的源代码，，可以提供参考(apm is project，)

基于matlab的相场模拟程序，希望对各位有所帮助，如有不对，还请批评指正(Matlab-based phase field case, you want to help, if wrong, criticism and)

method getOwnerDocument returns the Document object associated with this node.