variable_load

to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expression for M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the execution now compare our special 8X8 functions with the internal general functions use this code: A = int32(100*rand(8,8)) tic for i = 1 : 1000 IDCT_8X8(DCT_8X8(A)) end toc tic for i = 1 : 1000 idct2(dct2(A)) end toc i had built the general functions too, but with low speed (to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expressionfor M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the executionnow compare our special 8X8 functions with the internal general functionsuse this code: A = int32 (100* rand (8,8)) tic for i = 1: 1000 IDCT_8X8 (DCT_8X8 (A)) end toc tic for i = 1: 1000 idct2 (dct2 (A)) end toc i had built the general functions too, but with low speed)

Most of the string-functions are rather heavily hand-optimized, see especially strsep,strstr,str[c]spn.

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC）(（Low Density Parity Check Code，LDPC）)

说明：  使用K均值算法学习图片特征,对应Ng2012年的文章，learning features with k-means.(K-means algorithm using learning picture feature, the corresponding article Ng2012 years, learning features with k-means.)

viterbi译码算法，可以对卷积码进行解码。通信类的朋友知道的。。。(viterbi)

说明：  使用matlab时频分析中的一个demo文件 大家可以和传统的wavlet比较下(use Matlab time-frequency analysis of a demo we can document and traditional wavlet compared)

Imperialist Competitive Algorithm (ICA)

用MATLAB解决力学和力矩的问题时，可用此程序解矢量方程(This program can be used to solve the problems of the mechanics and torque using MATLAB solution vector equation)

face recognition matlab code preprocessing

this file is an ac to ac controller. you can control the output by adjusting the firing angle of the SCR.