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给你一个非常大的整数x，(-10^400 <=x<= 10^400)，请统计x的每一位，分别输出9,1,2出现的次数. Input 一个大整数 Output 一共三行，第一行是9出现的次数，第二行是1出现的次数，第三行是2出现的次数。 Sample Input 912912912910915902 Sample Output 6 5 4(Statistical figures)

The function impulsive_noise generates non-gaussian noise with inputs of beta, gamma,and the power of noise is 1 in W or 0 in dB. The noise can be defined either real or complex. The other functions generate QAM symbol and insert a vector to another vetor with specific locations

采用MATLAB语言编写的森林火灾元胞自动机程序，使用过程中，可以根据具体的情况，进行相应参数的修改。(The program of forest fire cell automata written in MATLAB language can be modified according to the specific situation.)

产生任意相关系数的多路高斯分布的噪声，用于模拟信号处理的噪声环境。(Generate multiple channals of noise with arbitrary cross-correlation coefficient )

Circuit Analysis II with MATLAB applications

Griewang and Michalewicz test bed for Genetic Algorithm Optimization Problems. This is a standard Test bed used by several authors to test the efficiency of their proposed algorithms.

三种不同的算法估计，估计均方差与信噪比的关系。(Three different algorithms is estimated that the estimated mean square error and SNR. )

this is a Matlab code for classification of Hand writed data by Neural network (Elman Network)

基于圆形比的圆的识别程序，使用matlab编制，简单易懂(Based on the ratio of a circle round the identification procedures, the use of matlab prepared, easy-to-read)

说明：  LDPC译码函数的matlab程序，希望大家能够喜欢(LDPC decoding function of Matlab procedures in the hope that we can love)