TetrahedronElementStiffness

说明：  不变矩是模式识别里面很重要的一种技术，它可以用于提取不变性特征，从而进行模式识别，广泛用于图像处理当中，如图像特征匹配(Moment invariant pattern recognition which is a very important technology that can be used to extract invariant features for pattern recognition which is widely used in image processing, such as an image feature matching)

极坐标3d画图程序，功能很强大，自己看帮助吧(POLARPLOT3D Plot a 3D surface from polar coordinate data)

本压缩包包含使用matlab解一般方程的源代码和ppt演示，希望对个位有所帮助~~~(This archive contains the general solution of equations using matlab source code and ppt presentation, we want to help a bit ~ ~ ~)

dc motor speed control using fuzzy logic

求电力系统状态估计ieee9节点 的雅阁比矩阵 依次类推可以求多个节点的雅阁比矩阵(Seeking power system state estimation Accord than ieee9 node matrix)

Basic fundamental approaches for images

说明：  matlab谱分析工具箱，作谱分析的很有用的工具，是基于matlab7.0的(Matlab Toolbox spectral analysis, spectral analysis for the very useful tool, is based on the matlab7.0)

fast forier transform 32

4种灰色关联度，包括邓氏关联度，绝对关联度等4种关联度模型联度模型。(Four kinds of grey correlation degree, including representing the correlation degree, absolute correlation degree and so on four kind of relational model coupling degree model)

一种快速傅里叶算法程序，多本matlab书上都要用到的例题。程序非常不错。(A fast Fourier algorithm program, and more in this book have used matlab example. Program is very good.)