Lorentz transformation
![](/Images/godic/202501/25/GPB_circling_earth0723.jpg")
![The spacetime coordinates of an event, as measured by each observer in their inertial reference frame (in standard configuration) are shown in the speech bubbles.Top: frame F′ moves at velocity v along the x-axis of frame F.Bottom: frame F moves at velocity −v along the x′-axis of frame F′.[9]](/Images/godic/202501/25/Lorentz_boost_x_direction_standard_configuration.svg0723.png")
![This diagram actually shows the inverse configuration of F′](/Images/godic/202501/25/Lt_hyperbolic_functions_1.svg0723.png")
![This diagram shows the original configuration of F](/Images/godic/202501/25/Lt_hyperbolic_functions_2.svg0723.png")
In physics, the Lorentz transformation (or transformations) are coordinate transformations between two coordinate frames that move at constant velocity relative to each other.
Frames of reference can be divided into two groups, inertial (relative motion with constant velocity) and non-inertial (accelerating in curved paths, rotational motion with constant angular velocity, etc.). The term "Lorentz transformations" only refers to transformations between inertial frames, usually in the context of special relativity.