> > What you intend to do isn’t really clear… Could you try and clear your > goals ? > Emmanuel
Thanks so much for your help. I'm trying to show that the wave equation (https://en.wikipedia.org/wiki/Wave_equation) is invariant under a certain coordinate transformation called the Lorentz transformation (special relativity). I represent the function that obeys the wave equation in the primed coordinate system by f(xp, yp, zp, tp). I also represent the primed coordinates by the coordinates in the unprimed coordinate system. Therefore, f(xp, yp, zp, tp) = f(xp(x, y, z, t), yp(x, y, z, t), zp(x, y, z, t), tp(x, y, z, t)). I then find a bunch of derivates of f(xp(x, y, z, t), yp(x, y, z, t), zp(x, y, z, t), tp(x, y, z, t)) and try to collect terms. All the coordinates should be real numbers. Does that explain everything? -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-support/6f836001-5abf-409e-aa45-14953697cce0n%40googlegroups.com.
