jacobi

自己编写的一个正弦函数频谱的估计，利用FFT函数实现，有详细注释，方便理解，附带仿真图一张(A sine function spectrum estimate their preparation, the use of FFT function implementation, detailed notes, easy to understand, with a simulation map)

FFT源代码 FFT源代码 FFT源代码(FFT source code FFT source code FFT source code)

加权总体最小二乘算法在直线拟合拟合的应用，算法为方兴博士论文中的算法1(total least square linear fitting)

用matlab编写的cholesky分解程序，希望对大家有些帮助(Matlab prepared using Cholesky decomposition procedures, in the hope that some U.S. help)

利用下载的goce原始数据，计算得出含有时间/经纬度/重力梯度格式的程序(Use downloaded goce raw data, calculated with the time/latitude/gravity gradient program formats)

kaerman 滤波MATLAB工具 以及程序(kaerman MATLAB TOOL)

vumat and umat file of hashin and hard

最小二乘拟合的matlab程序，用于数据处理。简单，易懂(The least squares fitting matlab program for data processing.Simple, easy to understand)

reduced mechanism for dodecane which can be used for auto-ignition and combustion calculations. The reduced mechanism can be coupled with any CFD codes like CHEMKIN, Fluent and KIVA.

PCA算法程序设计步骤： 1、去均值 2、计算协方差矩阵及其特征值和特征向量 3、计算协方差矩阵的特征值大于阈值的个数 4、降序排列特征值 5、去掉较小的特征值 6、去掉较大的特征值(一般没有这一步） 7、合并选择的特征值 8、选择相应的特征值和特征向量 9、计算白化矩阵 10、提取主分量 (PCA algorithm programming steps: 1 to mean 2, calculation of covariance matrix and its eigenvalues and eigenvectors 3, the calculation of covariance matrix eigenvalues greater than the threshold number of 4, in descending order of eigenvalue 5, remove the smaller eigenvalue 6, remove the larger eigenvalue (usually not this step) 7, the combined choice of eigenvalues 8, select the appropriate eigenvalues and eigenvectors 9, computing whitening matrix 10, principal component extraction)