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TEAR DROP CURVE

Cartesian parametrization: .
Cartesian equation: . Portion of a unicursal algebraic curve of degree n
+ 2 when n is an integer.
(the other portion, when n is odd, is parametrized by ). |

For *n* = 1, we get the loop of the right parabolic folium.

For *n* = 2, we get the piriform quartic, up to homothety.

Another curve looking like a tear drop: the Rosillo curve.

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© Robert FERRÉOL 2017