COMSOL 5 for Engineers-Mehrzad Tabatabaian

计算fft，输出频谱，相位，模值,Calculation of FFT, the output frequency, phase, amplitude,

用矩阵法求定积分1/(1+x^2)dx，区间是（-4，4）(Definite Integral Matrix Method)

有限差分法，5阶WENO格式求解一维Euler方程组的双冲击波问题(fifth-order WENO scheme for 1-D Euler equation with two blast waves problem)

多机电力系统仿真及其潮流计算，图像的光流法计算的matlab程序,与理论分析结果相比。( Multi-machine power system simulation and flow calculation, Image optical flow calculation matlab program, Compared with the results of theoretical analysis.)

说明：  该文件内容用于相空间重构参数时间延迟和嵌入维数的计算，时间延迟的计算包含去偏复自相关函数法和互信息法，嵌入维数的甲酸包含G-P算法和FNN算法。(The contents of this file are used to calculate the time delay and embedding dimension of phase space reconstruction parameters. The calculation of time delay includes depolarization complex autocorrelation function method and mutual information method. The embedding dimension of formic acid includes G-P algorithm and FNN algorithm.)

说明：  该LINGO程序的功能是：求出工程项目的收益的净现值和每道工序的最优开工时间，约束条件是紧前紧后约束，以及资源约束。。。(The program' s function is LINGO: the project proceeds to derive the net present value of each procedure and the optimal start time constraints are tight after the former tight constraints, and resource constraints. . .)

1、根据所给的中国版图数据 绘制显示基于北京54坐标系的经纬度数据 编写兰勃特投影转换程序，转换上述数据，并显示 编写墨卡托投影转换程序，转换上述数据，并显示 同时，要绘制相对应的经纬网格，网格间距5度 2、根据所给的世界版图数据 绘制显示基于WGS84坐标系的经纬度数据 编写墨卡托投影转换程序，转换上述数据，并显示 计算北京(116.4，39.8)到巴黎(2.2, 48.52)的大圆轨迹，并显示 同时，要绘制相对应的经纬网格，网格间距5度(1, according to the Chinese territory given display data drawn based on latitude and longitude data write Beijing 54 coordinate system Lambert projection conversion process, the conversion of the data, and displays the write Mercator projection conversion process, the conversion of the data, and display the same time, Draw the corresponding latitude and longitude grid, the grid spacing of 5 degrees 2, according to the world map rendering display data written to the Mercator projection based on latitude and longitude data conversion program WGS84 coordinate system, the conversion of the data, and displays the calculation Beijing (116.4, 39.8) to Paris (2.2, 48.52) the great circle track and display the same time, to draw the corresponding latitude and longitude grid, the grid spacing of 5 degrees)

埃特金加速法,一个数值分析中的算法,大家先看看哦(Aitken acceleration method, a numerical analysis of the algorithm, we look at the flash open her cloak)

RPCA的求解方法(利用拉格朗日乘子法，进行迭代)(the solution of RPCA called ALM)

ar谱估计，分别用了最小二乘法和yulewalker法。(ar spectrum estimation, least squares method were used and yulewalker law.)