watershed

DCT变换的matlab源代码。适合用作特征提取的预处理方法来使用。(DCT transform matlab source code. Suitable for feature extraction preprocessing method to use.)

Implement loss? part of JPEG encoder for grayscale images on the first implement grayscale image quantization

信号处理常用程序，中值滤波，提供给信号处理初学者的matlab编程。(Common signal processing procedures, the median filter)

在matlab软件中用直接法求解线性方程组的解，matlab例子程序(Matlab software using the direct method for solving linear equations solution, matlab example program)

说明：  针对matlab的simulink仿真的知识，对有这方面需要的网友请下载。(Simulink for matlab simulation of the knowledge of a need, please download the User.)

说明：  预测编码的部分函数，如需使用还需另外编写部分函数(Predictive coding part of the functions needed to prepare the part for the use of function)

simulation of fuel cell -part3

Data Encryption by Matrix Multiplication We will only use numbers 0 to 26 for the encryptive mathematics operation. Numbers from 1 to 26 are for letters from A to Z and 0 is for all non-letter characters. To minimize usage of numbers, all letters are converted to upper case. The original message is converted to number array according to the ASCII table and minus 64. We partition whole array into blocks of 8 numbers. The last block may be added several zeros. Then multiply each block by the an 8x8 matrix A which is invertible in Z27 to get cipher data. The decryption is the same process except to use its inverse matrix B. For good visual reading, we convert all non-letter characters to under score for the decryption.

快速扩展随机生成树算法，多机电力系统仿真及其潮流计算，计算十字叉丝的在不同距离的衍射图像。( Rapid expansion of random spanning tree algorithm, Multi-machine power system simulation and flow calculation, Calculation crosshairs diffraction image at different distances.)

说明：  1. 连续和离散时间信号与系统的MATLAB表达及简要分析。 （1） 列出单位冲激函数、单位阶跃、复指数函数等连续信号的MATLAB表达式。 （2） 产生一个幅度为2，数字角频率为 ，相位为 的正弦序列。 (1. Continuous and discrete-time signals and systems and a brief analysis of MATLAB expression. (1) are listed in unit impulse function, unit step, complex exponential function, such as the MATLAB signal for expression. (2) produce a range of 2, the number of angular frequency for the sinusoidal phase sequence for.)