## Agnesi CurveBy Paul BourkeJanuary 2001 |
x = 2 tan(t)
y = 2 cos(t) -1.1 <= t <= 1.1 |

Parameterisation of x^{2} y = 4 (2 - y)

Studied in 1748 by Maria Gaetana Agnesi and earlier by Fermat around 1666 and Grandi in 1703. Agnesi called the curve "versiera".