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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. )

采用广义特征值的方法对一般椭圆方程进行代数拟合求得一般椭圆方程的几何参数(Method using the generalized eigenvalue equation for general elliptic algebra obtained by fitting the geometric parameters of the general elliptic equation)

this is a matlab file for modified yule nielsen model for predicting the printed area color

自己编程的matlab成绩查询系统，能实现对.txt以及.xls等多种文件格式的读取，并通过mcc命令转化为可执行文件。压缩包内含所有源码。(Own programming matlab query system can achieve right. Reading txt and. Xls and other file formats, and through the mcc command into an executable file. Archive contains all the source code. .)

超声声场的线性描述与仿真工具，可以作为超声系统的研究有用工具，根据不同的输入 ，得到不同的超声图像，验证自己的算法。(The linear ultrasonic sound field description and simulation tool that can serve as a useful tool for study of ultrasound systems, depending on the input, get a different ultrasound images to verify their algorithms.)

this is game optical recognition by mathlab

用matlab编写，实现对一幅图像进行线性灰度变换。(Prepared using matlab, achieve a linear gray transform the image.)

这里面包含了大量的关于MATLAB基本用法的教程 对初学者很有用(This contains a lot of tutorials on the basic usage of MATLAB is useful for beginners)

this file is about using matlab simulink.

总结了近十年的间谐波研究的方法和一些关键技术(Summarizes the research nearly a decade of inter-harmonics method, and some key technologies)