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

A Flatness Problem Differential Equation

  1. Dec 3, 2016 #1
    Hello to everybody,

    Since 3 days, I've been trying to obtain Eq. (173) from https://ned.ipac.caltech.edu/level5/Sept03/Trodden/Trodden5.html

    I know I need to derivate with respect to a, but it is being impossible to obtain the final answer. Can anybody help me with a detailed derivation?

    Thank you in a advance
  2. jcsd
  3. Dec 4, 2016 #2


    User Avatar
    Science Advisor

    How are you going about the derivation?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted