In mathematics, a rotating body is commonly represented by a pseudovector along the axis of rotation.

- Right-hand ruleA right-hand rule is used to find which way it points along the axis; if the fingers of the right hand are curled to point in the way that the object has rotated, then the thumb of the right hand points in the direction of the vector.

- Rotation around a fixed axis2 related topics

## Rotation

Rotation is the circular movement of an object around an axis of rotation.

According to the right-hand rule, the direction away from the observer is associated with clockwise rotation and the direction towards the observer with counterclockwise rotation, like a screw.

## Angular velocity

In physics, angular velocity or rotational velocity ('''

In physics, angular velocity or rotational velocity ('''

The orientation of angular velocity is conventionally specified by the right-hand rule.

Orbital angular velocity refers to how fast a point object revolves about a fixed origin, i.e. the time rate of change of its angular position relative to the origin.