Differential equations non linear, second order by using maple

[alejandrito29]

For my thesis I need to solve many differential equations non linear, second order by using maple...
For example figure adjoint
using dsolve command, the solutions are very extensives and very bad.

there is a suggest for to solve the differential equations by using maple?

there is some methods in maple to find the approximate solution?

thanks

 

[gato_]

Maple is a good tool to solve, both exactly and approximatedly, but it relies on you making the right simplifications to throw an useful answer, and that is specific for each equation. What is the problem you are trying to solve? is the one in the figure the simplest formulation?