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Homework Help: Generation of differential constant

  1. Oct 22, 2009 #1
    1. The problem statement, all variables and given/known data

    What is the name of the following very small unit?

    [tex] {f}'(x) h [/tex]

    3. The attempt at a solution

    I know the name in Finnish "Differentiaalikehitelma", but not in English.
    However, I have not managed to find help about the method which my professor says is very important.

    My suggestion for the name is "generation of differential constant".
    However, I have not managed to find any help concerning the unit.
  2. jcsd
  3. Oct 22, 2009 #2
    I think what you're talking about is
    [tex] df = \frac{df}{dx}dx= f'(x) dx.[/tex]​
    If that is what you're talking about, then we'd call a "differential form".
  4. Oct 22, 2009 #3
    Your equation makes sense.
    What is the name of it?
  5. Oct 23, 2009 #4
    The differential of f.
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