Equilateral Ellipse - Formula & References

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Discussion Overview

The discussion revolves around the concept of an "equilateral ellipse," particularly in relation to its definition and whether it can be equated with a circle. Participants are seeking clarification on the term, its mathematical formulation, and references to support their claims.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • Douglas expresses confusion about the term "equilateral ellipse," suggesting it should refer to a circle, but acknowledges uncertainty.
  • One participant cites a paper by Augustus DeMorgan, claiming that a circle is indeed referred to as an "equilateral ellipse."
  • Another participant confirms finding the term in old books that also support the idea of a circle being called an "equilateral ellipse."
  • There is a question raised about whether the term might refer to ellipses that have inscribed triangles, with links provided to related resources.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the definition of "equilateral ellipse," with multiple interpretations and references being discussed. The discussion remains unresolved regarding the precise meaning and implications of the term.

Contextual Notes

There are limitations in the discussion regarding the definitions of terms and the mathematical context of the references provided. Some assumptions about the relationship between circles and ellipses are not fully explored.

Douglasdc
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I did and exam a while ago and one of the questions asked to find a formula for an "equilateral ellipse". In my mind an equilateral ellipse should be a circle, but it seems I am wrong.

I searched online for the term, but didn't find anything useful. Does anyone know what it is, can find a formula and give me some references?

Thanks,
Douglas.
 
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Thanks Mark. I found the term in some old books as well and they also state that a circle can be called an "equilateral ellipse".
 

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