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Harmonic-geometric progression

  1. Oct 10, 2003 #1
    Can anyone explain to me the concept and the application of the harmonic-geometric progression?

    T sub n = a + d(n-1)

    Thanks!

    :smile:
     
  2. jcsd
  3. Oct 10, 2003 #2

    HallsofIvy

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    I have no idea where you got this. There ARE "harmonic" progression (Tn= 1/n) and geometric progressions (Tn= a rn) but the example you give Tn = a + d(n-1) is neither one, it is an "arithmetic" progression.
     
    Last edited: Oct 13, 2003
  4. Oct 11, 2003 #3

    selfAdjoint

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    Gauss worked with arithmetic-geometric progressions. I'm not sure what they "mean" but they have nice mathematical properties. When I get back to my books I'll post something on these. But arithmetic-harmonic I've never heard of.
     
  5. Oct 12, 2003 #4
    RE

    got it from my profe HallsofIVy
     
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