annulus
An annulus is a two-dimensional shape which can be thought of as a disc with a smaller disc removed from its center. An annulus looks like:
Note that both the inner and outer radii may take on any values, so long as the outer radius is larger than the inner.
| Title | annulus |
|---|---|
| Canonical name | Annulus |
| Date of creation | 2013-03-22 12:26:23 |
| Last modified on | 2013-03-22 12:26:23 |
| Owner | akrowne (2) |
| Last modified by | akrowne (2) |
| Numerical id | 12 |
| Author | akrowne (2) |
| Entry type | Definition |
| Classification | msc 51-00 |