Harmonic-geometric progression

  • Context: Undergrad 
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Discussion Overview

The discussion revolves around the concept and application of harmonic-geometric progression, with participants exploring definitions and classifications of different types of progressions, including arithmetic, harmonic, and geometric progressions.

Discussion Character

  • Debate/contested

Main Points Raised

  • One participant requests an explanation of harmonic-geometric progression and presents a formula they believe is related.
  • Another participant challenges the initial formula, asserting that it represents an arithmetic progression rather than a harmonic or geometric one.
  • A third participant mentions Gauss's work with arithmetic-geometric progressions, indicating that they have interesting mathematical properties but expresses uncertainty about their meaning.
  • This same participant notes they have not encountered the term "arithmetic-harmonic" progression before.
  • A later reply clarifies the source of the initial formula as coming from a professor.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the classification of the initial formula, with some asserting it is arithmetic while others seek to clarify its relation to harmonic and geometric progressions. The discussion remains unresolved regarding the definitions and applications of these progressions.

Contextual Notes

There are missing assumptions regarding the definitions of the progressions discussed, and the mathematical properties of the mentioned progressions are not fully explored.

Integral0
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Can anyone explain to me the concept and the application of the harmonic-geometric progression?

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

Thanks!

:smile:
 
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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.
 
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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.
 
RE

got it from my profe HallsofIVy
 

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