The programme "MathcadTrigonometricBasisNstate.mcd" calculates eigenvalues for alleged neutral charge N-states. 

The matrices for analytically determined matrix elements are labelled with an a, like "Ia", "Iv2a" and so on. The corresponding eigenvalues are called "e" and "ec" respectively. 
"e" refers to approximate solutions where the global curvature and centrifugal potentials are disregarded.

"ec" refers the full, exact solution. 

"eee" at the end of the programme is based on numerically calculated matrix elements. This is a much more time consuming process. It is encouraging though to have the numerical results for specific matrix elements as a check on the rather complicated algebraic expressions for analytically derived results.


The programme "MathcadParametricBasisNstate.mcd" calculates eigenvalues for neutral charge states depending on results from the Maple programme "MapleParametricFunctionGenerator.mw".

The structure of the programme is the same as above, only now we start by reading files containing tabulated values of a set of parametric basis functions and their second derivatives generated by the Maple programme. And now the integrations are simple sums of point values of the integrand multiplied by the step length to the cube, i.e. 1/M^3, where M is the number of points tabulated for each function. We call it "Number of base points..." though this may not be the proper expression in English.