Eccentricity (mathematics) | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-15

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Eccentricity_(mathematics)


00:00:39 1 Definitions
00:01:59 2 Alternative names
00:02:31 3 Notation
00:03:08 4 Values
00:05:37 5 Ellipses
00:06:18 5.1 Other formulae for the eccentricity of an ellipse
00:08:50 6 Hyperbolas
00:09:14 7 Quadrics
00:09:56 8 Celestial mechanics
00:10:38 9 Analogous classifications
00:11:29 10 Eccentricity for data shapes
00:12:11 11 See also



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SUMMARY
=======
In mathematics, the eccentricity of a conic section is a non-negative real number that uniquely characterizes its shape.
More formally two conic sections are similar if and only if they have the same eccentricity.
One can think of the eccentricity as a measure of how much a conic section deviates from being circular. In particular:

The eccentricity of a circle is zero.
The eccentricity of an ellipse which is not a circle is greater than zero but less than 1.
The eccentricity of a parabola is 1.
The eccentricity of a hyperbola is greater than 1.