Definition:Kappa Curve

Definition

The kappa ($\kappa$) curve is the plane quartic curve which is the locus of the equation expressed in Cartesian coordinates as:

$x^4 + x^2 y^2 = a^2 y^2$

Also see

• Results about the kappa curve can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): kappa curve
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): kappa curve