Excellent for a modern, spin-first approach using Dirac notation.

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wget https://example.com/merzbacher_solutions_v1.zip sha256sum merzbacher_solutions_v1.zip # expected: e3b0c44298fc1c149afbf4c8996fb924... unzip merzbacher_solutions_v1.zip

Detailed derivations of the Schrodinger equation in various potentials.