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Integral or Derivative of dx

  1. Feb 27, 2009 #1
    I am in the middle of a problem and I have to take the integral of "dx" This is very confusing, I would guess x or 1 but neither really makes sense to me. How would you take the derivative of something to form dx???, similarly how would you take the derivative of dx^2.

    Aside from knowing that dx meaning a very small bit of something, I have no idea how one can take the derv. or integ. or it. It just doesn't make any sense.

    Please Help

    Thanks
     
    Last edited: Feb 28, 2009
  2. jcsd
  3. Feb 27, 2009 #2
    dx = 1*dx... this can easily be integrated.
     
  4. Feb 28, 2009 #3
    explain how to take the dervative of dx with respect to x
     
  5. Feb 28, 2009 #4

    Dick

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    If you mean d(dx)/dx, that doesn't make any sense. If you mean dx/dx that's just d/dx(x). The derivative of the function f(x)=x.
     
  6. Feb 28, 2009 #5
    Maybe you could give a little more context. The symbol "dx" is used in various different places in mathematics.
    For example, if you consider dx as a 1-form on the real line, then the indefinite integral is x+c for any c. See http://en.wikipedia.org/wiki/Exterior_derivative" [Broken]
     
    Last edited by a moderator: May 4, 2017
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