$\dot{z}=f(z,t)$————(1)

$\dot{x}=g(x,y,t)$
$\dot{y}=h(x,y,t)$

The New Calculation Of Lagrangian Point 4,5

The New Calculation Of Lagrangian Point 1,2,3

$\ddot{\vec{r}}_k=\sum_{i=1,i != k}^{n} Gm_i\frac{\vec{r}_i-\vec{r}_k}{|\vec{r}_i-\vec{r}_k|^3}$————(19)