jacobi

计算材料学中用相场法模拟凝固相变以及晶粒长大的开源性程序(Computational Materials Science solidification using phase-field simulation of grain growth phase transitions and open-source program)

把 Maxwell 方程式在时间和空间领域上进行差分化。利用蛙跳式(Leap frog algorithm)--空间领域内的电场和磁场进行交替计算，通过时间领域上更新来模仿电磁场的变化，达到数值计算的目的。(The Maxwell equations in time and space on the field differencing. Using the leapfrog (Leap frog algorithm)- Space field for alternating electric and magnetic fields calculated by the time domain electromagnetic field is updated to mimic the changes to achieve the purpose of numerical calculation.)

说明：  局部线性回归方法及其稳健形式已经被看作一种有效的非参数光滑方法.与流行的核回归方法相比,它有诸多优点,诸如:较高的渐近效率和较强的适应设计能力.另外,局部线性回归能适应几乎所有的回归设计情形却不需要任何边界修正。(Local linear regression methods and their solid form has been seen as an effective non-parametric smoothing method. Contrary to popular kernel regression methods, it has many advantages, such as: higher efficiency and stronger asymptotic adaptation design capacity. In addition, the local linear regression to adjust to the return of the design of almost all cases does not require any boundary amendment.)

说明：  基于mises屈服准则的随动强化模型的umat子程序(Follow up reinforcement UMAT)

给出接收信号眼图及系统仿真误码率，可实现对二维数据的聚类，matlab开发工具箱中的支持向量机。( The received signal is given eye and BER simulation systems, Can realize the two-dimensional data clustering, matlab development toolbox support vector machine.)

跟踪中心轨迹内点法最优潮流程序 实现了有功损耗最小的经济分配。 本程序用ieee14节点网络测试(Interior point method OPF program to achieve the minimum power loss of economic distribution. The program ieee14 node network test)

对任意基本函数组合进行最小二乘曲线拟合的源程序。(basic function of arbitrary combinations least squares curve fitting of the source.)

A simple algorithms to calculate very big factorial, this program can calculate up to 30000!

数值分析中运用matlab用hermit插值多项式逼近函数(Numerical analysis using matlab function hermit interpolation polynomial approximation)

利用五点差分格式和Jacobi迭代法，求解精确解和数值解的误差，判断阶数是否正确(Five-point difference scheme and Jacobi iteration method are used to solve the error between exact solution and numerical solution and to judge whether the order is correct or not.)