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:
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—Ellen Henrietta Swallow Richards (1842–1911)
“An island always pleases my imagination, even the smallest, as a small continent and integral portion of the globe. I have a fancy for building my hut on one. Even a bare, grassy isle, which I can see entirely over at a glance, has some undefined and mysterious charm for me.”
—Henry David Thoreau (1817–1862)