eular_ode

光滑粒子（SPH）模拟couette流动，代码是根据刘桂荣老师《光滑粒子流体动力学-一种无网格方法》书后的代码改编，较实用，请需要的下载(Smoothed Particle (SPH) simulation couette flow, the code is based on Liu Guirong teacher " smoothed particle hydrodynamics- a non-grid method" Code adaptation of the book, more practical, please download required)

自己编写的振动响应计算的matlab程序，可以运行，结果正确。(dynamic response of the system using matlab。)

多元统计分析—基于R- 数据data，讲解多元统计在R中如何实现，对于多元统计软件入门，是很实用的课程(Multivariate Statistical Analysis Based on R language .about data)

非常实用的时域仿真法暂态分析工具，利用牛顿法求解系统的微分方程组和代数方程组，得到转子摇摆曲线，判断暂态是否稳定(Very useful time-domain simulation tool for transient analysis method, using Newton method for solving systems of differential equations and algebraic equations, the rotor swing curves, to determine the stability of transient)

晶体相场计算原子密度场分布和缺陷形成,基本程序，用于科学计算。基于Fortran 6.5编写，在其他应用程序中可能需要略微修改(Phase-field crystal modeling of atomic density field distribution)

基于二阶锥约束的方向不变恒定束宽波束形成(Based on the direction of the same second-order cone constraint constant beamwidth beamforming)

说明：  FDTD的3D源程序,PEC边界,比较详细(FDTD the 3D source, PEC boundary, a more detailed)

自己编写的求可达矩阵，层次划分 代码.使用时，替换已有矩阵，即可运算！ (I have written for reachability matrix, the level of classified code. Use, replace the existing matrix, computing can be!)

说明：  四阶龙哥库塔方法求解一阶微分方程的数值解法，能自定义迭代步数和迭代精度，非常适合于计算方法的初学者。(Long Ge Kuta fourth-order methods for a numerical solution of differential equations can be customized and iterative iterations precision calculation method is suitable for beginners)

可以对高温状态下的混凝土材料进行准确的塑型模型构建(It can be used to construct accurate plastic model of concrete under high temperature)