get_roots

采用五点差分格式解决椭圆问题，这里是3个详例。(Using a five-point difference scheme to solve elliptic problems, here are three detailed examples.)

层数N对光子晶体带隙的影响，不同的介质层数N，即不同的周期数,传输矩阵也不同，光子晶体的反射率和透射率也不同。(Influence of layers N bandgap of photonic crystals)

clk, games tetris i hope is necesary

voice recognition project code

说明：  Matlab经典教程--从入门到精通，Matlab经典教程--从入门到精通(Matlab classic tutorial- from approaches to master)

维纳滤波Matlab代码 1 可以直接作为函数调用； 2 可以减少图像的块效应，以及平滑图像。(Wiener Filter Matlab code can be used directly as a function call 2 blocks can reduce the image effects, and smoother image.)

Matlab 读取txt中的network data并转化为邻接矩阵(Matlab read txt the network data and converted into an adjacency matrix)

Matlab code for plotting histogram of red green and blue components of any image

NSGA-II源程序，可用于工程、管理及经济学的研究。(NSGA-II源程序evaluate_objective.m .............genetic_operator.m .............initialize_variables.m ............. on_domination_sort_mod.m ............. sga_2.m .............objective_description_function.m ............. eplace_chromosome.m ............. ournament_selection.m .............htmlevaluate_objective.html .................genetic_operator.html .................initialize_variables.html ................. on_domination_sort_mod.html ................. sga_2.html .................objective_description_function.html ................. eplace_chromosome.html ................. ournament_selection.html .............html )

matlab code for boosting color in an image