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 gray-eyed morn smiles on the frowning night,
Check’ring the eastern clouds with streaks of light,
And fleckled darkness like a drunkard reels
From forth day’s path and Titan’s fiery wheels.”
—William Shakespeare (1564–1616)
“Painting myself for others, I have painted my inward self with colors clearer than my original ones. I have no more made my book than my book has made me—a book consubstantial with its author, concerned with my own self, an integral part of my life; not concerned with some third-hand, extraneous purpose, like all other books.”
—Michel de Montaigne (1533–1592)