The flattening of a spheroid (also called oblateness) is denoted
or (Snyder 1987, p. 13). It is defined
as
(1)
where is the polar radius
and is the equatorial radius .
It is related to the ellipticity by
(Snyder 1987, p. 13).
See also Ellipsoid ,
Ellipticity ,
Oblate Spheroid ,
Prolate
Spheroid ,
Spheroid
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References Snyder, J. P. Map Projections--A Working Manual. U. S. Geological Survey Professional
Paper 1395. Washington, DC: U. S. Government Printing Office, 1987. Referenced
on Wolfram|Alpha Flattening
Cite this as:
Weisstein, Eric W. "Flattening." From
MathWorld --A Wolfram Web Resource. https://mathworld.wolfram.com/Flattening.html
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