Double
Cone
A geometric figure made up of two right
circular cones placed
apex to apex as shown below. Typically a double cone is considered
to extend infinitely far in both directions, especially when working
with conic sections and degenerate
conic sections.
Note: The graph of the equation z^{2} = x^{2} + y^{2} is a standard way
to represent a double cone. That is the equation for the image
below.
Double Cone
