Qt写的解Van der Pol方程的ODE45小程序，与matlab程序类似，自动记录计算耗时。-Qt to write small programs ODE45 Solutions Van der Pol equation, similar matlab program automatically records time-consuming calculation.

利用C++写的matlab轨道积分程序，积分函数是ode45(Using the MATLAB track integration program written in C++, the integration function is ode45.)