Numerical-Methods-Engineering

MATLAB常见错误及分析。matlab初学者的好资料，非常有用。(MATLAB common grammatical error analysis and solutions。matlab beginner good information, very useful. )

用vba程序遍历所有目录下的excel文件，把各文件中两列经度和纬度的内容合并，并插入新列。很好的高效率的遍历程序。(Vba program to traverse all excel file directory, each file merge the contents of two of the latitude and longitude, and insert a new column. Good high efficiency of the traversal process.)

链路预测程序,主程序，包含31个链路预测的函数代码(link prediction)

source code for getting fuzzy membership function for face recognition

用经典龙格-库塔法和变步长的龙格-库塔法求解微分方程(Classical Runge- Kutta method and the variable step Runge- Kutta method for solving differential equations)

Displays raw data of figure plots in separate spreadsheet tables

Matlab Sample Codes Implementation

说明：  采用栅格对机器人的工作空间进行划分，再利用优化算法对机器人路径优化，是采用智能算法求最优路径的一个经典问题。目前，采用蚁群算法在栅格地图上进行路径优化取得比较好的效果，而利用遗传算法在栅格地图上进行路径优化在算法显得更加难以实现。 利用遗传算法处理栅格地图的机器人路径规划的难点主要包括：1保证路径不间断，2保证路径不穿过障碍。 用遗传算法解决优化问题时的步骤是固定的，就是种群初始化，选择，交叉，变异，适应度计算这样，那么下面我就说一下遗传算法求栅格地图中机器人路径规划在每个步骤的问题、难点以及解决办法。(It is a classical problem to divide the workspace of the robot by grids and optimize the path of the robot by using optimization algorithm. At present, the ant colony algorithm is used to optimize the path on the grid map, and the genetic algorithm is used to optimize the path on the grid map, which is more difficult to achieve. The difficulties of using genetic algorithm to deal with the path planning of robot on raster map mainly include: 1. guaranteeing that the path is uninterrupted, 2. guaranteeing that the path does not cross obstacles. The steps of genetic algorithm in solving optimization problems are fixed, that is, population initialization, selection, crossover, mutation, fitness calculation. Then I will talk about the problems, difficulties and solutions of genetic algorithm in each step of robot path planning in raster map.)

提出一种多描述分层语音编码器，基于正弦和等效矩形带宽模型，将正弦和噪声模型参数根据能量大小进行适当分配以得到不同的描述和感知层(A layered multiple description speech coder based on the sinusoidal model and the equivalent rectangular bandwidth will be sinusoidal and noise model parameters in accordance with the energy distribution of the size appropriate to get different descriptions and perceptual layer)

code for fitness distance ratio PSO