Example
3. Solve
with
over
. Use
Mathematica's DSolve procedure.
Solution 3.
Use Mathematica's procedure DSolve to get an analytic solution. (This is the "true solution.")
![[Graphics:../Images/RungeKuttaFehlbergMod_gr_60.gif]](../Images/RungeKuttaFehlbergMod_gr_60.gif)
Look at the solution curves for RKF45 and the "true solution."
![[Graphics:../Images/RungeKuttaFehlbergMod_gr_65.gif]](../Images/RungeKuttaFehlbergMod_gr_65.gif)
(c) John H. Mathews 2004