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Subject: "Conjugate Diameter"     Previous Topic | Next Topic
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Conferences The CTK Exchange College math Topic #712
Reading Topic #712
KMGC
guest
Apr-10-09, 02:25 PM (EST)
 
"Conjugate Diameter"
 
   In "A treatise on analytical geometry", conjugate and transverse axes are noted, regarding oblate and prolate spheroids, which agrees with the definition of conjugate and transverse diameters of an ellipse.
But, back on pg.107 of "A treatise...", the concept of "Conjugate Diameters in Ellipse" appears to being discussed.

How can that be? Aren't the red and blue lines actually oblique diameters, with the vertical diameter along "y" being the conjugate diameter, and the horizontal along "x", the transverse?
Are there two different meanings of "conjugate diameter?

    ~KMGC~


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alexbadmin
Charter Member
2357 posts
Apr-11-09, 12:19 PM (EST)
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1. "RE: Conjugate Diameter"
In response to message #0
 
   > Are there two different meanings of "conjugate diameter?

I rechecked the references on my page. Looks to me that I followed their treatment to the letter. If there is difference with another book's terminology, it won't be the first time in the history of mathematics.


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