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Which path integral?

https://en.wikipedia.org/wiki/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 by Richard Feynman of quantum mechanics






We’re talking about basic calculus, so it’s the first one.

I'd be inclined to agree, but parent poster was concerned about solving problems numerically, which is trivial for line integrals, as they are just sums of triangle hypotenuses.



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