Finite_element_tri

用fortran编写重力正演及最小二乘反演程序(fortran prepared gravity forward and inversion procedure)

天线组阵中相位差的递推最小二乘估计与滤波(Phase array antenna group recursive least squares estimation and filtering)

gmres 方法。视图求解线性方程组A*x=b的解x。nXn的稀疏矩阵A必须是方程且应是大型稀疏矩阵。列向量b的长度必须为n。(gmres method. View solving linear equations A* x = b the solution x. nXn sparse matrix A must be equation and should be large sparse matrix. The length of the column vector b must be to n.)

滑动轴承接触滑块的计算方法，给定雷诺方程和膜厚方程，然后用迭代方法计算压力分布和膜厚分布，以及承载能力(The calculation method of the sliding bearing contact with the slider, a given Reynolds equation and the film thickness of the equation, and then calculated using iterative methods pressure distribution and film thickness distribution, as well as carrying capacity)

包括基本的克里金(Kriging)插值法实现代码，仅实现基本方法部分，不包含扩展克里金方法( kriging uses ordinary kriging to interpolate a variable z measured at locations with the coordinates x and y at unsampled locations xi, yi. The function requires the variable vstruct that contains all necessary information on the variogram. vstruct is the forth output argument of the function variogramfit. This is a rudimentary, but easy to use function to perform a simple kriging interpolation. I call it rudimentary since it always includes ALL observations to estimate values at unsampled locations. This may not be necessary when sample locations are not within the autocorrelation range but would require something like a k nearest neighbor search algorithm or something similar. Thus, the algorithms works best for relatively small numbers of observations (100-500). For larger numbers of observations I recommend the use of GSTAT. Note that kriging fails if there are two or more observa)

说明：  上数据挖掘课的课件，是EM算法的，其中还包括最大似然值，最大似然估计，以及cluster(data mining,EM Algorithm ,Likelihood, Mixture Models and Clustering )

3-D 目标MoM源代码 可以求解球体，旋转体等目标的电磁散射问题(MoM )

计算辐射传输专业代码，可以计算大气透过率等参数。欢迎下载使用。(Radiative transfer calculations the professional code, and can calculate parameters such as atmospheric transmittance. Welcome to download.)

用多重网格方法求解泊松方程，偏微分方程求解(use multigrid method to solve poisson equation, pde solver)

fluent 改进的全空化模型，针对可压缩流，内有声速处理(fluent improved full cavitation model for compressible flow, there are the speed of sound processing)