用于演示阻尼振动，根据微分方程求解，可轻松计算一点的函数值-Used to demonstrate the damping vibration, according to differential equation solving, function point can easily calculate the value of

背单词程序 数值微分包括用插值多项式求数值导数 用三次样条函数-Memorizing words program numerical differentiation include numerical derivative with interpolation polynomial Using cubic spline function