Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Question on §3 of Einstein's 1905 paper

  1. Jan 15, 2017 #1
    Hi guys,

    This is my first time posting on PF!

    I have a question on §3 of Einstein's paper "On the electrodynamics of moving bodies."


    My problem is with the following mathematical statements:

    img22.gif

    Hence, if x' is chosen to be infinitesimally small,

    img23.gif

    or

    img24.gif


    I have just finished highschool, and whilst I have finished two other books which concerned Special Relativity (and understood them well) I think I do not know enough maths to understand what i pasted above. Could someone explain how he gets from step 1 to step 2 please?
    Or, perhaps could someone tell me what topics in calculus I must learn in order to understand it myself?

    Thanks!!

    EDIT: I found many other threads asking the exact same thing as me... Oops! I managed to derive it on my own so no answer is necessary :).
     
    Last edited: Jan 15, 2017
  2. jcsd
  3. Jan 15, 2017 #2

    Drakkith

    User Avatar
    Staff Emeritus
    Science Advisor

    Mind posting the derivation so others can see how it was done?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted