# Definition:Cone/Double Napped Cone

< Definition:Cone(Redirected from Definition:Double Napped Cone)

Jump to navigation
Jump to search
## Definition

A **double napped cone** is a cone where the lines joining the apex to the circumference of the base extend indefinitely in either dimension:

### Nappe

Each of the halves of a double napped cone is a **nappe**.

## Also known as

A **double napped cone** is also known as a **double cone**.

Some sources hyphenate: **double-napped cone**.

## Also see

## Sources

- Weisstein, Eric W. "Double Cone." From
*MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/DoubleCone.html