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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—Novalis [Friedrich Von Hardenberg] (1772–1801)
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—Michel de Montaigne (1533–1592)