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 lesson which these observations convey is, be, and not seem. Let us acquiesce. Let us take our bloated nothingness out of the path of the divine circuits. Let us unlearn our wisdom of the world. Let us lie low in the lord’s power, and learn that truth alone makes rich and great.”
    —Ralph Waldo Emerson (1803–1882)

    “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)