Random-Forest-master

用abaqus单元开发子程序uel生成弹簧单元。(User subroutine VUEL defining a three-dimensional spring element with degrees of freedom ordered in a nonstandard way)

地球科学：重力场积分(Fortran90) Stokes/Hotine/V_M垂线偏差积分：数值积分、二维平面FFT、二维球面FFT、一维FFT(Earth Sciences: Gravity Field Points (Fortran90) Stokes/Hotine/V_M deflection of the vertical integration: numerical integration, the two-dimensional plane FFT-dimensional sphere FFT, one-dimensional FFT)

针对三维问题，建立四面体单元的有限元方法(Finite element method for establishing tetrahedron element)

电弧炉对电网影响仿真软件，希望对大家有所帮助(EAF impact on the power grid simulation software, want to help everyone)

使用Y矩阵来综合得到耦合矩阵M中各元素的matlab源代码(The Y matrix to obtain an integrated coupling matrix M of each element matlab source code)

说明：  Kim 的非线性有限元分析经典教材，教材很经典，对于静态有限元分析讲的很透彻，书中附有matlab代码(Kim's nonlinear finite element analysis classic textbook, the textbook is very classic, for static finite element analysis is very thorough, the book with matlab code)

已知日期，计算出星期几的程序.以过测试。计算正确。请放心使用。(Caculate Weekday)

间断有限元方法（ Runge–Kutta discontinuous Galerkin ）求解N-S方程 算例为一维sod问题 流通量为BR1(Discontinuous Finite Element Method (Runge-Kutta discontinuous Galerkin) N-S equation solving a one-dimensional example problem sod Liquidity is BR1)

卡尔曼滤波程序用于时间序列预测，结构简单程序易懂(kalman filter for prediction)

用R做贝叶斯估计，估计随机微分方程中的参数(Bayesian estimation made by R, the parameter estimates stochastic differential equation)