Have studied the dynamics Lagrange method of many rigid body more systematically, namely the many rigid bodydynamics modeling method to adopt relative coordinate.
比较系统地学习了多刚体动力学的拉格朗日方法，即采用相对坐标的多刚体动力学建模方法。
2
In the study of 1d quantum nonlinear lattices, especially in the study of dynamics, it is unavoidable to solve the many-body time-dependent Schrodinger equation.