Stick number
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In the mathematical theory of knots, the stick number is a knot invariant which intuitively gives the smallest number of straight "sticks" stuck end to end needed to form a knot. Specifically, given any knot K, the stick number of K is the smallest number of edges of a polygonal path equivalent to K.
[edit] External links
Eric W. Weisstein, Stick number at MathWorld.
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