A nonic curve is a plane algebraic curve of degree 9 (Fulton 2008, p. 31).
The following table illustrates examples of nonic curves from named families.
| geometry | representative |
| hyperelliptic curve ( ) |
| sinusoidal spiral ( ,  ) |
Nonic Curve
See also
Algebraic Curve, Plane Curve, Polynomial DegreeExplore with Wolfram|Alpha
References
Fulton, W. Algebraic Curves: An Introduction to Algebraic Geometry. Online edition, 2008. https://www.sas.rochester.edu/mth/sites/doug-ravenel/otherpapers/fulton-curves.pdf.Cite this as:
Weisstein, Eric W. "Nonic Curve." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/NonicCurve.html