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Vectors in a plane

Unit vectors and normalized vectors
The green vector is the original vector.

The normal vector is blue and perpendicular to the original vector.

The unit vector has the magnitude 1 and the same direction as the original vector.

The normal vector is the vector perpendicular to the original vector in counterclockwise direction.


The normal vector is denoted by a hat-like sign above the vectors letter.

 ^{u}=(-y,x)