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Ratio of product to difference - terminology?

  1. Apr 14, 2013 #1

    dgm

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    Is there a specific mathematical term, which refers to this expression?

    A * B
    ------
    A - B
     
  2. jcsd
  3. Apr 14, 2013 #2

    tiny-tim

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    Science Advisor
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    hi dgm! :smile:
    not that i know of …

    where did you come across this? :confused:
     
  4. Apr 14, 2013 #3
    It can be expressed as the reciprocal of (1/B)-(1/A).
     
  5. Apr 14, 2013 #4

    dgm

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    It's the form of an expression for the "room constant", a measurement in acoustics:

    S*A
    ----
    S-A

    S is total surface area of a room, A is total absorption of a room in sabins.

    Nice one. Thanks.
     
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