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GeezerVison is showing mathworld.wolfram.com — Algebraic Curve -- from Wolfram MathWorld

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Algebraic Curve


An algebraic curve is a one-dimensional algebraic variety. An affine plane algebraic curve over a field K is the locus defined by an equation f(X,Y)=0, where f(X,Y) is a nonconstant polynomial with coefficients in K. A nonsingular algebraic curve has no singular points over an algebraic closure of K. A point on the plane curve is a solution of its equation, with coordinates in K or an extension field. A K-rational point has both coordinates in K.

The following table lists the names of algebraic curves of a given degree.

ordercurveexamples
2quadratic curvecircle, ellipse, hyperbola, parabola
3cubic curvecissoid of Diocles, conchoid of de Sluze, folium of Descartes, Maclaurin trisectrix, Mordell curve, Ochoa curve, right strophoid, semicubical parabola, serpentine curve, Tschirnhausen cubic, witch of Agnesi
4quartic curveampersand curve, bean curve, bicorn, bicuspid curve, bifoliate, bifolium, bitangent-rich curve, bow, bullet nose, butterfly curve, capricornoid, cardioid, Cartesian ovals, Cassini ovals, conchoid of Nicomedes, cruciform, deltoid, devil's curve, Dürer's conchoid, eight curve, fish curve, hippopede, Kampyle of Eudoxus, Kepler's folium, Klein quartic, knot curve, lemniscate, lima bean curve, limaçon, links curve, Maltese cross curve, pear-shaped curve, piriform curve, swastika curve, trefoil curve, trifolium
5quintic curveBurnside curve, butterfly catastrophe curve, stirrup curve
6sextic curveastroid, atriphtaloid, Cayley's sextic, cornoid, cycloid of Ceva, dumbbell curve, ellipse evolute, epicycloid, Freeth's nephroid, heart curve (first), limaçon evolute, nephroid, quadrifolium, scarabaeus curve, Talbot's curve
8octic curvepear curve
12dodecic curveranunculoid

See also

Algebraic Geometry, Algebraic Variety, Character Variety, Curve, Etale Morphism, p-adic Section Conjecture

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References

Arbarello, E.; Cornalba, M.; Griffiths, P. A.; and Harris, J. Geometry of Algebraic Curves, I. New York: Springer-Verlag, 1985.Coolidge, J. L. A Treatise on Algebraic Plane Curves. New York: Dover, 1959.Griffiths, P. A. Introduction to Algebraic Curves. Providence, RI: Amer. Math. Soc., 1989.Krishnan, S. and Manocha, D. "Numeric-Symbolic Algorithms for Evaluating One-Dimensional Algebraic Sets." In Proc. 1995 International Symposium on Symbolic and Algebraic Computation, ISSAC '95 (Ed. A. H. M. Levelt). New York: ACM Press, pp. 59-67, 1995. https://doi.org/10.1145/220346.220354.

Referenced on Wolfram|Alpha

Algebraic Curve

Cite this as:

Weisstein, Eric W. "Algebraic Curve." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/AlgebraicCurve.html

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