Gauss_elimination

simple application of newton s method to solve nonlinear equation

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

MATLAB算例，编程实现日期查询的功能。(MATLAB examples, Programming Date query functions.)

基于matlab的共轭梯度法,基于这种算法可以求解矩阵的解，以及相应的误差(base on matlab)

Buck PI simulation in matlab

resource alocation download and enjoy

用kalman方法进行相位解缠,里面包含多到程序，初学者可用(use kalman method phase unwrapping)

小波包分析提取振动信号中的特征频率，语音信号的采集与处理，数字信号处理课设，已经调试成功.内含m文件，可直接运行。( Wavelet packet analysis to extract vibration signal characteristic frequency, Acquisition and Processing of the speech signal, digital signal processing class-based, Has been successful debugging. M contains files can be directly run.)

通过调用matlab遗传算法工具计算函数的最大值(Using genetic algorithm function of the maximum)

说明：  applications of rough sets