Path Integral

Path integral may refer to:

  • Line integral, the integral of a function along a curve
  • Functional integration, the integral of a functional over a space of curves
  • Path integral formulation of quantum mechanics using functional integration, due to Richard Feynman

Famous quotes containing the words path and/or integral:

    “The path was a vague parting in the grass
    That led us to a weathered windowsill.
    We pressed our faces to the pane. “You see,” he said,
    “Everything’s as she left it when she died....””
    —Robert Frost (1874–1963)

    “Self-centeredness is a natural outgrowth of one of the toddler’s major concerns: What is me and what is mine...? This is why most toddlers are incapable of sharing ... to a toddler, what’s his is what he can get his hands on.... When something is taken away from him, he feels as though a piece of him—an integral piece—is being torn from him.”
    —Lawrence Balter (20th century)