ArcLength

ArcLength[reg] gives the length of the one-dimensional region reg.

ArcLength[{x1,…,xn},{t,tmin,tmax}] gives the length of the parametrized curve whose Cartesian coordinates xi are functions of t.

ArcLength[{x1,…,xn},{t,tmin,tmax},chart] interprets the xi as coordinates in the specified coordinate chart.

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