2-Class

XFEM扩展有限元模拟二维裂纹动态扩展，由哈弗大学一个研究小组开发，非常值得学习(XFEM extended finite element simulations of two-dimensional crack dynamic propagation, developed by a team at Harvard University, is worth learning)

流体力学中simple算法的matlab代码(Fluid mechanics simple algorithm matlab code)

说明：  对一个线性二阶系统进行基于阶跃响应模型的预测控制以及详细讲解(Predictive control based on step response model for a linear second-order system)

exercise1:为基于小波变化与局部能量的图像融合方法 exercise2:为基于自适应算法的图像融合算法 myfunction1~myfunction5:为性能指标评价函数(exercise1: To change and local energy based on wavelet image fusion method exercise2: adaptive algorithm based image fusion algorithm myfunction1 ~ myfunction5: performance indicators for the evaluation function)

先进PID控制MATLAB仿真（第3版）/刘金琨-第四章中的仿真程序(Advanced PID control MATLAB (version 3)/Liu Jinkun- of Chapter IV of the simulation program)

Least /mean Square (LMS) algorithm for adaptive filtering using matlab with examples

simple api source code using matlab

harmonic analysis in matlab

实际光源不是绝对的单色，包含一定的光谱宽度△λ。△λ范围内的每一种波长的光都生成各自一组干涉条纹，除零干涉级外，相互间均有位移，使条纹对比度下降。(The actual light source is not absolutely monochromatic, contain a certain spectral width △ λ. Each wavelength of light within the range △ λ generates a set of interference fringes each, in addition to the zero level outside interference, mutual displacement are so fringe contrast decreases.)

此文件实现了让语音信号通过低通，高通，带通滤波器使其变声，并且在GUI界面上绘出了个滤波器的频率响应和语音信号的频谱。(This file allows to achieve a voice signal through a low pass, high pass, band pass filter to make it change the sound, and plotted on a GUI interface and voice signal spectrum frequency response of a filter.)