2.3 Schrodinger PDE

  2.3.1 Logan textbook, page 30
  2.3.2 In a square, zero potential
  2.3.3 From Mathematica help pages
  2.3.4 From Mathematica help pages
  2.3.5 David Griffiths, page 47
  2.3.6 David Griffiths, page 47
  2.3.7 In a square

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