Here is a simple case from my previous post that id like to solve.
With boundary conditions of y==2 and y==3
Using NDSolve on these equations, Mathematica says the order of the equations is 3 and it has only 2 initial conditions. But the order of this system of equations is 2 as far as I see (since order is defined as the highest derivative)
When I do try to put another boundary condition in like z==0 Mathematica spits out that it cant solve for the derivatives and is using a mass matrix method (error:ntdvmm) and then it says that it has significant errors (error:berr) and will return the best solution found.
Any help on this matter will be greatly appreciated.