This demonstration allows you to see the results of a general Lorentz transformation in which the relative velocity between the two frames is in an arbitrary direction (not confined to the x-direction). Use the first four sliders to pick the spacetime coordinates of an event in the unprimed frame. Use the next three sliders to choose the velocity of the primed frame relative to the unprimed frame. The demonstration calculates the spacetime coordinates of the event in the primed coordinate system.