The study of Schroedinger equations with position-dependent mass is
increasingly popular among authors (cf. 72 references in this 8-page
paper) as well as among referees (easy to read) and editors (the
impact factor of the Journal gets amended). The present authors
suggest to solve the problem using the brutal numerical,
Mathematica-assisted and Table-illustrated, purely intuitive method
which Taylor-series-expands (in the origin) and truncates wave
functions.


MR2733846 Koç, Ramazan; Sayin, Seda Remarks on the solution of the
position-dependent mass Schrödinger equation. J. Phys. A 43 (2010),
no. 45, 455203, 8 pp. 81Qxx