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## Angle |

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Given two vectors . The associated arrows, attached with their tails to a given point (vertex), form two angels of which the smaller one is denoted by

The two vectors are called orthogonal, , if the angle between them equals . By convention, the zero vector is orthogonal to every vector.

**see also:**

- Keyword: Angle
- Keyword: Vector calculus

[Examples]

automatically generated 3/28/2008 |