matlab Newmark法 用于求解二阶常系数微分方程组-matlab Newmark method for solving second-order differential equations with constant coefficients

该程序段有助于解决微分方程组的求解，所用的方法为龙格库塔法-The block can help to solve the solution of differential equations, the method used for the Runge-Kutta method

利用MATLAB求解偏微分方程组，边界条件为第一类、第二类条件。-Using MATLAB to solve partial differential equations, the boundary conditions for the first category, the second category of conditions.