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Mathematics-Online course: Vector Calculus - Vectors | ||

## Vectors in Space |

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A vector is a directed line segment. The vector represented by the arrow from a point to a point is denoted by

Two vectors are regarded as equal when they have the same length and direction. means that the directed line segments from to and to represent the same vector.

A vector represents a parallel translation of the space:

corresponds to the translation of the point into the point , pictured by an arrow.

The coordinates of can also be obtained by calculating the difference of the recpective coordinates of the points and . Finally, the zero vector is denoted by

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automatically generated 10/30/2007 |