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kampyle of Eudoxus
A hour-glass-shaped curve that was first studied by
Eudoxus
in an attempt to solve the classical problem of
duplicating the cube
. It is described by the Cartesian equation
a
2
x
4
=
b
4
(
x
2
+
y
2
)
It is also the radial curve of the
catenary
.
Related category
PLANE CURVES
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