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I Stationary field

  1. Feb 15, 2017 #1


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    So, I got a question about stationary field.
    In the lecture the professor said, that our field is stationary, so we have [itex]\frac{du}{dt}=0[/itex], but from what I read in books, it only means, that [itex]\frac{\partial u}{\partial t} =0[/itex]. Who is right and why ?
  2. jcsd
  3. Feb 15, 2017 #2


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    The total derivative makes no sense unless you have a function of ##t## only. A stationary field is a field that does not depend on ##t## and therefore ##\partial_t u = 0##.
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