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Finding the curvature of a point on a wave,help pls,thx

  1. May 21, 2010 #1
    May i know how to find the curvature of a point on a wave function?

    e.g
    wave function: y=Asin(wx)

    and i want to find the curvature of a point at for example x=x0 and y= Asin (wx0)

    thank you very much
     
  2. jcsd
  3. May 22, 2010 #2

    HallsofIvy

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    If y= f(x), the curvature at [itex]x= x_0[/itex] is given by
    [tex]\frac{|f''(x_0)|}{(1+ f'^2(x_0))^{3/2}}[/tex].
     
  4. May 23, 2010 #3
    o thx HallsofIvy~~
     
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