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What does 2nd ord pde tell you? like fxx(x,y)

  1. Apr 12, 2012 #1
    pure and mixed, what do they tell you about a function?
  2. jcsd
  3. Apr 14, 2012 #2


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    Science Advisor

    ??? Exactly what they say- they tell you about how the function, and its first and second derivatives, are related. If not that I don't know what you are looking for.
  4. Apr 14, 2012 #3
    is there a graphical representation of what it looks like?
  5. Apr 15, 2012 #4


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    give values to x and y, and draw it.
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