# Manuals/calci/TORUS

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**TORUS (Radius,TubeRadius,w1)**

where

- and are radius value of the circle.
- TORUS() shows the Torus for the given value.

## Description

TORUS (Radius,TubeRadius,w1)

- is the radius value of the bigger circle.
- is the radius value of the smaller circle.
- A torus is a surface of revolution generated by revolving a circle in three dimensional space about an axis co planar with the circle. *If the axis of revolution does not touch the circle, the surface has a ring shape and is called a torus of revolution.
- For example of TORUS are rings, doughnuts, and bagels.
- A torus can be defined parametrically by:

where , are angles which make a full circle, so that their values start and end at the same point.

- is the distance from the center of the tube to the center of the torus.
- is the radius of the tube.
- is known as the "major radius" and is known as the "minor radius".
- The ratio R divided by r is known as the aspect ratio.
- The typical doughnut confectionery has an aspect ratio of about 3 to 2.

## Examples

## Related Videos

## See Also

## References