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

When can one Change order of derivatives?

  1. Jan 16, 2012 #1
    Here is an example...

    d/dz(dp/dx) = d/dx(dp/dz)

    I dont remember learning this in my calculus or differential equations classes unless it was called something else.
  2. jcsd
  3. Jan 16, 2012 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper

    Those would be mixed partial derivatives.
    Look it up.

    The short answer is: almost always.
    Last edited: Jan 16, 2012
  4. Jan 16, 2012 #3
    Hmm...ok never knew that. Thanks.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: When can one Change order of derivatives?