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What function I'm looking at?

  1. Apr 15, 2015 #1
    Hey all

    What's could the function be on the plot (see the attachment)?

    plot.png
     
  2. jcsd
  3. Apr 15, 2015 #2

    berkeman

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    Staff: Mentor

    I know! I know! Pick me! :smile:

    Where did you get it, and what do you think it is?
     
  4. Apr 15, 2015 #3
    For some reason your response led me to think that the answer is obvious... :biggrin: So I plotted [itex]1-e^{-x}[/itex] and it turns out that it's the answer I'm looking for. Never seen an (inverse or whatever it's called) exponential decay plot in log-log scale before ..
    As for the irrelevant 'where did you get it' -- it's thermally averaged cross section.
     
  5. Apr 15, 2015 #4

    berkeman

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    Staff: Mentor

    Glad I could help :smile:

    To me it looks like a 2nd order high-pass filter transfer function. The vertical axis does look strange, though. How come each set of 10 logarithmic lines on the vertical axis is x100 instead of x10? Is that on purpose? What would the labels for each of the 10 minor gridlines be on the vertical axis...?
     
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