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图像的放大缩小，其中缩小任意比例，放大整数比。在matlab的work路径中选择需要操作的图像，图像使用者自备。(Image Zoom, which reduce the arbitrary ratio to enlarge than integer. In matlab choose the path of work need to operate images, user-owned images.)

本文讲述的是运用matlab软件编写线性卷积和循环卷积，运行程序并得到正确结果，附上运行结果图让大家参照对比。

电力系统IEEE30节点的节点阻抗矩阵的形成程序，采用的是支路追加法(Power system IEEE30 node node impedance matrix formation program, using the branch addition method)

MATLAB课件，前两章，包括数值运算和简述，对初学者有很大的帮助(MATLAB courseware, the first two chapters, including numerical computation and brief for beginners great help)

运用matlab的程序提取nastran的结果文件里面的模态信息(Use matlab program to extract files which results nastran modal information)

this is for block diagonalisation

说明：  有关稀疏采样（Sparse Sampling）的文献(literature related to Sparse Sampling. )

三个空间错开漩涡光束右旋螺旋形焦点在xy平面的强度分布计算程序(XY distriburion of right handed spiral focal spot)

说明：  通过奇异值分解的方法对数字图像进行压缩达到节省存储空间的目的(Compression of digital image by singular value decomposition to save storage space)

14单元的转子圆盘系统临界转速分析。与前面的是一个系列。(14 units of the critical speed of the rotor disc system analysis. And in front of a series.)