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We compare the Wronskian method (WM) and the Schr\"odinger eigenvalue marchor canonical function method (SEM--CFM) for the calculation of the energies andeigenfunctions of the Schr\"odinger equation. The Wronskians between linearlyindependent solutions of the Schr\"odinger equation provide a rigorous basisfor some of the assumptions of the SEM-CFM, like, for example, the concept of"saturation". We compare the performance of both approaches on a simpleone-dimensional model and suggest that taking into account the asymptoticbehaviour of the wavefunction (as is already done in the WM) may make theSEM-CFM more efficient from a numerical point of view.

Wronskian method and the Schr\"odinger eigenvalue march