A point where a curve intersects itself along four arcs. The above plot shows the quadruple point at the origin of the quadrifolium .

See also

Double Point, Triple Point

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References

Walker, R. J. Algebraic Curves. New York:Springer-Verlag, pp. 57-58, 1978.

Referenced on Wolfram|Alpha

Quadruple Point

Cite this as:

Weisstein, Eric W. "Quadruple Point." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/QuadruplePoint.html

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