For other uses, see Toroid.
 |
It has been suggested that this article or section be merged into Torus. (Discuss) |
 |
Look up toroid in Wiktionary, the free dictionary. |
In mathematics, a toroid is a doughnut-shaped object, such as an O-ring. Its annular shape is generated by revolving a geometrical figure around an axis external to that figure. When a rectangle is rotated around an axis parallel to one of its edges then a hollow cylinder (resembling a piece of straight pipe) is produced.
If the revolved figure is a circle, then the surface of such an object is known as a torus.
References
 |
This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (October 2009) |
 |
This geometry-related article is a stub. You can help Wikipedia by expanding it. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
