Sunday, February 5, 2017

How out of round are u??


el·lip·tic·i·ty
ēˌlipˈtisədē,eˌlipˈtisədē/
noun
  1. the condition of being elliptic.
    • the degree of deviation from circularity (or sphericity).

Ellipticity -- from Wolfram MathWorld

mathworld.wolfram.com › Geometry › Solid Geometry › Ellipsoids
by EW Weisstein - ‎2002 - ‎Related articles
Ellipticity. Given a spheroid with equatorial radius and polar radius , the ellipticity is defined by. (1) It is defined analogously to eccentricity and is commonly denoted using the symbols (Snyder 1987, p. 13) or (Beyer 1987). It is related to the flattening by.

Flattening - Wikipedia

https://en.wikipedia.org/wiki/Flattening
A sphere of radius a compressed to an oblate ellipsoid of revolution. Flattening is a measure of the compression of a circle or sphere along a diameter to form an ellipse or an ellipsoid of revolution (spheroid) respectively. Other terms used are ellipticity, or oblateness.

geometry - What are defintions of ellipticity? - Mathematics Stack ...

math.stackexchange.com/questions/537115/what-are-defintions-of-ellipticity
Oct 23, 2013 - Ellipticity seems to have many definitions. So far, I'm aware of three. Are there other definitions of ellipticity that you know of, and if so, where did ...

What is the relationship between 'ellipticity' and 'axis ratio ...

www.galaxyzooforum.org › The outer Universe › Star space
Apr 17, 2013 - 7 posts - ‎4 authors
"Ellipticity" is a bit more mysterious. On the one hand it can simply be a synonym for the axis ratio; on the other it might be the arctan of this, ...

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