Autonomous ODE's have no explicit t-dependence. They come in the form
Equilibrium
Autonomous ODE's have trivial ODE solutions.
If
then
is the equilibrium solution of the ODE.
If
is a solution, then so is
for any constant
Solution
Autonomous equations can be solved by Separation of Variables method.
Phase Line
Consider
- If
, the solution is at equilibrium
- If
, then y is increasing in t
- If
, then y is decreasing in t