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Crunode


MaclaurinTrisectrix

A crunode, also known as an ordinary double point, of a plane curve is point where a curve intersects itself so that two branches of the curve have distinct tangent lines. The Maclaurin trisectrix, shown above, has a crunode at the origin.


See also

Acnode, Ordinary Double Point, Spinode, Tacnode

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Cite this as:

Weisstein, Eric W. "Crunode." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Crunode.html

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