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Riemann sum?

  1. Mar 25, 2015 #1
    I'm not sure if this is the right place to post this in, but I'm trying to recreate the "Deformation of water by a magnetic field" experiment by Chen et al. The PDF version of the paper can be accessed via Google (for some reason it won't let me provide a direct link).

    On the 2nd page of the paper, they do a Riemann sum to calculate the value for the depression of the water surface as a function of position, but I can't figure out how they got those values for Δh. For my experiment I've managed to obtain the Δy values, but I don't know how to go from there. Any help would be appreciated.
    Last edited: Mar 26, 2015
  2. jcsd
  3. Mar 26, 2015 #2

    Ray Vickson

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    You should type out the few confusing equations/expressions.
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