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{{wiktionary|eccentric|eccentricity}}
'''Eccentric''' is from the ] for ''out of the ]'', as opposed to ], ''in the centre''.
* In ], ''']''' is a parameter associated with every ]. It can be thought of as a measure of how much the conic section deviates from being circular.
* In ], the ] can be calculated from ] as an absolute value of ] or using other methods based on ] and ].
* In ], an ] is a ] that rotates on an ] that is displaced from the focus of the circle described by the wheel —in other words, a mechanical motion that can operate either as a ] or a ], depending upon how it is driven.
* In popular usage, ''']''' refers to unusual or odd ] on the part of a person, as opposed to being "]". There is a saying that "If you're rich, you're eccentric; if you're poor, you're crazy." See also ].


'''Eccentricity''' or '''eccentric''' may refer to:
{{disambig}}


* ], odd behavior on the part of a person, as opposed to being "normal"
]
{{toc_right}}
]

]
==Mathematics, science and technology==
]
===Mathematics===
]
* Off-], in geometry
]
* ] of a vertex in a graph
]
* ], a parameter associated with every conic section
]

]
===Orbital mechanics===
* ], in astrodynamics, a measure of the non-circularity of an orbit
* ], the angle between the direction of periapsis and the current position of an object on its orbit
* ], in celestial mechanics, a dimensionless vector with direction pointing from apoapsis to periapsis
* Eccentric, a type of ], a circle or sphere used in obsolete epicyclical systems to carry a planet around the Earth or Sun

===Other uses in science and technology===
* ], a wheel that rotates on an axle that is displaced from the focus of the circle described by the wheel
* ], in vision, degrees of visual angle from the center of the eye
* ], the lengthening of muscle fibers
* Eccentric position of a ] tripod, to be able to measure hidden points
* ], the motion of an active muscle while it is lengthening under load
* Eccentricity, a deviation from ]

==Other uses==
* ], a London gentlemen's club
* '']''
* '']''

== See also ==
* {{lookfrom|eccentric}}
* {{intitle|eccentric*}}
* ]

{{disambiguation}}
]

Latest revision as of 01:13, 29 June 2021

Eccentricity or eccentric may refer to:

Mathematics, science and technology

Mathematics

Orbital mechanics

  • Orbital eccentricity, in astrodynamics, a measure of the non-circularity of an orbit
  • Eccentric anomaly, the angle between the direction of periapsis and the current position of an object on its orbit
  • Eccentricity vector, in celestial mechanics, a dimensionless vector with direction pointing from apoapsis to periapsis
  • Eccentric, a type of deferent, a circle or sphere used in obsolete epicyclical systems to carry a planet around the Earth or Sun

Other uses in science and technology

Other uses

See also

Topics referred to by the same term Disambiguation iconThis disambiguation page lists articles associated with the title Eccentricity.
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