## bicorn
cocked-hat, any of a collection
of quartic curves studied by James Sylvester
in 1864 and by Arthur Cayley in 1867. The
bicorn has the Cartesian equationy^{2}(a^{2} - x^{2})
= (x^{2} + 2ay - a)^{2}
## Related category• PLANE CURVES | |||||||

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