Hi Guys,(adsbygoogle = window.adsbygoogle || []).push({});

I've attached 2 pages from the book of landau "The Classical Theory of fields", I have a question about the lorentz transformations in pages 10,11

after reaching the step:

tanh(psy)= V/c

How did he split the latter into sinh(psy) and cosh(psy) and added the "gamma" constant which is 1/sqrt(1-V^2/c^2) ????

Can we add any constant we want? of course there is a reason

anyone can explain?

I know the Einsteins way of concluding these transformations but I want to understand the rotation of axes method

thanks in advance, please reply as soon as possible :)

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Lorentz transformation conclusion with rotation of axis

**Physics Forums | Science Articles, Homework Help, Discussion**