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

B Vectors and gradients

  1. Jul 26, 2016 #1
    I was watching a video explaining Einsteins field equations for beginners and he was giving some information on Vectors before he gets into the actual equations. He got to this equation:

    I'm real confused, how does he know that dx and dø are both? Why does dø change to dy? What does the equation even mean? Please help I can't continue the video because I'm real confused on his part.
     

    Attached Files:

    Last edited: Jul 26, 2016
  2. jcsd
  3. Jul 26, 2016 #2

    DrSteve

    User Avatar
    Gold Member

    Perhaps for beginners doesn't mean for people who have not yet studied calculus?
     
  4. Jul 26, 2016 #3
    Well that was rather snotty. I figured it out and it was just him not explaining it properly. A forum like this should be welcoming to beginners and not picking fun at their ignorance. If you're not helping then don't reply.
     
    Last edited: Jul 26, 2016
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Vectors and gradients
Loading...