FLUENT-Y_Plus

利用楚列斯基分解法和平方根法分解对称矩阵，较为实用(use the Cholesky method and esquare-root method to solve the problem of Triangle decomposition of matrix)

fdtd的2d算法，pml边界条件，二维TE波(fdtd the 2d algorithm, pml boundary conditions, 2D TE wave)

说明：  二维河道水动力模型；matlab 迭代程序；水质模拟(Two dimensional river hydrodynamic model; MATLAB iterative program; water quality simulation)

行人群体疏散仿真的社会力模型，可用于做系统仿真(Social force model for pedestrian evacuation)

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

说明：  基于高斯赛德尔法的线性方程组解法（可消去系数矩阵病态）。基于牛顿法及改进的牛顿法实现对 非线性方程的求解。(Based Linear Equations high Sisaideer law (coefficient matrix can be eliminated morbid). Realization of nonlinear equations of Newton' s method for solving and improved Newton method is based.)

说明：  彭曼公式主要是计算蒸散发量，在水文和气象中有广泛的应用(Penman formula to calculate evapotranspiration primarily, widely used in hydrology and meteorology)

说明：  siPLS和biPLS是两种用于近红外光谱特征波段筛选的变量选择方法，可筛选出与兴关注指标密切相关的特征波段，并去除无关和干扰变量，提高模型稳健性(Bipls and sipls are two variable selection methods for screening the characteristic intervals of near-infrared spectra, which are closely related to performance indicators, to improve the robustness of models.)

sod problem solved by ausm format

Hypercomplex mathematical morphology