Four Body 3D Simulation

M(1,2,3,4) is the mass of the object in kg, P(1,2,3,4)(x,y,z) the initial position in m and v(1,2,3,4)(x,y,z) the initial velocity in m/sek on the (x,y,z) axis. System is Newtonian Space. To change the lenght of the trail, replace "{t,0,Tmax}" with "{t,Tmax-100000,Tmax}" for example, if you need the trail-lenght to be 100000 sec.