Hi

I think it is better to use fortran for Huge calculations. if you can't work with fortran, you can convert the maple codes to fortan codes by right click and select language coversions and select fortran, then you can use these fortran codes.

Hi dear
thank you for your attention.
I can not solve whole of the ode by a numerical method,because of these reasons
The "S" is the Laplace parameter and "n" is not a known parameter and it will be found at continue of solution. but we can identify the "a" and "theta". is it possible to solve it symbolically by identifying two or three parameters ?
the numerical and symbolical code is available on two last posts.
thanks a lot
sincerely yours
M.H