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Homework Help: Boundary conditions for wave fixed at one end

  1. Aug 23, 2009 #1
    For a string fixed at x=0 and free at x=l I know [tex]\frac{dy}{dx}(l,t)=0[/tex] (d's are meant to be partials) but what is the other boundry associated with the end of the string? Is the second derivative also equal to 0?
  2. jcsd
  3. Aug 23, 2009 #2


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    Gold Member

    [tex]\frac{\partial y(0,t)}{\partial x}=0[/tex] must also be true since it is fixed. Also [tex]\frac{\partial^2 y(0,t)}{\partial x^2}=0[/tex]
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