In Euclidean geometry, a translation is a geometric transformation that moves every point of a figure or a space by the same amount in a given direction.
In Euclidean geometry a transformation is a one-to-one correspondence between two sets of points or a mapping from one plane to another.) A translation can be described as a rigid motion: the other rigid motions are rotations, reflections and glide reflections.
A translation can also be interpreted as the addition of a constant vector to every point, or as shifting the origin of the coordinate system.
A translation operator is an operator such that