My friend has had good success with Maxima on his project. He makes the
comment --
It seems Maxima is not able to handle partial differential equations
(with several variables),
only ordinary differential equations. Mathematica and Maple have the
reqired packages,
but are mainly tailored for mechanical and engineering applications.
Quantum mechanics is too special (requires algebraic eigenvalues for
example). I think
if feasable solutions of the Schr?dinger equation in cartesian
coordinates existed, they
would be describe in books, at least in the outline. I know that any
group tried to solve
quantum mechanical equations numerically on a rectangular grid, but it
was rather
unprecise because the grid was not adopted to the centralsymmetric
geometry.
Is he right about PDEs in Maxima? Have the packages he refers to been
converted?
Are you familiar with the general solutions he is seeking?
Thank you again for your expertise.