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)

    “Make the most of your regrets; never smother your sorrow, but tend and cherish it till it come to have a separate and integral interest. To regret deeply is to live afresh.”
    —Henry David Thoreau (1817–1862)