From: blackhead on
I'm looking for a program which allows me to define the world lines of
a number of particles in one frame, and then to see how these world
lines transfrom in another frame.

Thanks.
From: eric gisse on
blackhead wrote:

> I'm looking for a program which allows me to define the world lines of
> a number of particles in one frame, and then to see how these world
> lines transfrom in another frame.
>
> Thanks.

Its' called a Lorentz transformation.