Swastika curve
The swastika curve is the name given by Cundy and Rollett[1] to a type of quartic plane curve.
Equations
The quartic plane curve with the Cartesian equation
or, equivalently, the polar equation
The curve looks similar to the right-handed swastika. It can be inverted with respect to a unit circle to resemble a left-handed swastika. The Cartesian equation then becomes
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References
- H. Martyn Cundy; A.P. Rollett (1961). Mathematical Models (second ed.). Oxford University Press. p. 71.
External links
- "Swastika Curve". Mathworld.
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