Updated program. Now it seemingly works for two electrons with coloumb
interaction: (potentials V and V2). Writing eigenvectors and rho_array
to file for plotting in python.
close to final version before handing in: program is fully functioning,
but I'm still running tests for various rho_max and N values.
Final version of project 2, ready for devilry. (I'm ready for bed!)
last version of my 'program'. really unsure what's going on with this
project at this moment