Arc length is the distance between two points along a curve. It can be formalized mathematically for smooth curves using vector calculus and differential geometry, or for curves that might not necessarily be smooth as a limit of lengths of polygonal chains.
Arc length is the distance between two points along a curve. It can be formalized mathematically for smooth curves using vector calculus and differential geometry, or for curves that might not necessarily be smooth as a limit of lengths of polygonal chains.
Source: Wikipedia "Arc length" · CC BY-SA 4.0
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