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Proof of second order derivative

  1. Apr 10, 2009 #1
    How to prove that

    y''=d2y/dx2

    if y=f(x)
     
  2. jcsd
  3. Apr 10, 2009 #2

    arildno

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    ???
    That's just expressing the equivalence between two different types of notation conventions..
     
  4. Apr 10, 2009 #3
    i want to know how does the notation d2y/dx2 come into existence...
     
  5. Apr 10, 2009 #4

    arildno

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    Leibniz introduced it. Why would that be of any interest??
     
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