- #1
fineTuner
- 17
- 0
Hi,
i have to reduce the order of a 2nd order differential equation, to solve it with a numerical method.
The equation is:
[itex]\ddot{r}+a\dot{r}+\frac{b}{r^{2}}=0[/itex]
with [itex]a,b\geq0[/itex]
I tried to reduce it substituting [itex]\dot{r}=v[/itex], but i don't know what to do with the term [itex]\frac{b}{r^{2}}[/itex] .
Can someone explain me what i should do?
Thank you,
J.
i have to reduce the order of a 2nd order differential equation, to solve it with a numerical method.
The equation is:
[itex]\ddot{r}+a\dot{r}+\frac{b}{r^{2}}=0[/itex]
with [itex]a,b\geq0[/itex]
I tried to reduce it substituting [itex]\dot{r}=v[/itex], but i don't know what to do with the term [itex]\frac{b}{r^{2}}[/itex] .
Can someone explain me what i should do?
Thank you,
J.