AF-Damage-HLCF_7075_7451

实现求取雅克比矩阵的程序，对于学习数值分析的同学会很有用(Realize the procedures for Jacques than matrix )

说明：  插补算法 步进电机控制算法 很好的资料(PWM 1234567891010101010101010101)

求解非线性方程组的NewRaphson方法(Solving nonlinear equations NewRaphson method)

计算大气密度的程序 用于航空宇航研究的基础程序(With the code you can getting the atmosphere denisity along the height)

一元线性回归，数值分析方面可参考(one yuan linear regression, numerical analysis can look at the reference)

说明：  独立分析 主成分分析 可以提取矩阵独立成分与主成分，显示空间特征与时间特征以及对应的奇异分析用于计算能进行奇异值分解等。主要用于数值的提取计算等。(It can extract the independent and principal components of matrix, display the spatial and temporal characteristics, and use the corresponding singular analysis to calculate the singular value decomposition. It is mainly used for extraction and calculation of numerical value.)

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)

说明：  此程序为满足条码不能带IOQ三位字母的计算方法(Bar code can not be three letters with the calculation of IOQ)

偏微分方程的数值解法，简单的离散 变分以及求解过程(Numerical solution of partial differential equations, the simple and the solution process of discrete variational)

能够实现二维边界造波，且自带消波，能够较好地模拟波浪荷载。(with a prgram of eliminating wave,it can be used to achieve boundry wave.)