the code are all written by myself.aiming to solve the differential equation

刚度分析\E_x.m
刚度分析\F_X.m
刚度分析\k_x.m
4RK\hh.m
4RK求解动力学一阶微分方程组\main.m
4RK求解动力学一阶微分方程组\RKVDP.m
Newmark_B\Newmark_B.m
二阶非线性非自治微分方程零四阶RK法\main.m
二阶非线性非自治微分方程零四阶RK法\rk4th_paper_repeat.m
二阶非线性非自治微分方程零四阶RK法\rk4th_paper_repeat_3D.m
刚度分析
4RK
4RK求解动力学一阶微分方程组
Newmark_B
二阶非线性非自治微分方程零四阶RK法

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