VPSO

求解二阶变系数常微分方程,主要用于涡激振动中频率响应的计算(Solving second-order ordinary differential equations with variable coefficients)

求解转子系统前三个临界转速和主振型的传递矩阵法 (Calculation of critical speed)

说明：  一个机器学习的python文件，里面拥有各种机器学习方法，可以供大家参考(A Python file for machine learning, which has various machine learning methods, can be used for your reference.)

求解流场二维无粘欧拉方程，中心差分，人工耗散(Solving the flow field in two-dimensional inviscid Euler equation, central difference, artificial dissipation)

说明：  c语言编写的高效用LU分解法求任意维数的矩阵的逆，它是经典书籍《算法导论》（第二版）中矩阵求逆的c语言实现。 (The algorithm of matrix inverse is based on LU decomposition which is proposed by the book of introduction to algorithm (second edition).)

说明：  运筹学中的运输问题的C++程序，支持产销平衡与产销不平衡，可以判断解的情况。(C++ code of transportation problem)

编制了theta映射法的ansys蠕变子程序(a creep subroutine of ansys that considered the theta-projection method)

用mfc实现计算器的基本操作，支持键盘输入，并保留xp风格,可计算平方，幂，时间显示等操作(With mfc achieve the basic operation of the calculator, support for keyboard input, and retain xp style, calculates the square, power, time display and other operations)

frictional model to analysis in abaqus, a good subroutine to build a new frictional relationship

计算最短路径，可用于计算图论中最短路径的分析和求解(Calculate the shortest path)