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eccentricity

eccentricity


ec·cen·tric·i·ty  (ksn-trs-t)
n. pl. ec·cen·tric·i·ties
1.
a. The quality of being eccentric.
b. Deviation from the normal, expected, or established.
2. An example or instance of eccentric behavior.
3. Physics The distance between the center of an eccentric and its axis.
4. Mathematics The ratio of the distance of any point on a conic section from a focus to its distance from the corresponding directrix. This ratio is constant for any particular conic section.

eccentricity [ˌɛksɛnˈtrɪsɪtɪ]
n pl -ties
1. unconventional or irregular behaviour
2. (Mathematics) deviation from a circular path or orbit
3. (Astronomy) a measure of the noncircularity of an elliptical orbit, the distance between the foci divided by the length of the major axis
4. (Mathematics) Geometry a number that expresses the shape of a conic section: the ratio of the distance of a point on the curve from a fixed point (the focus) to the distance of the point from a fixed line (the directrix)
5. (Engineering / Mechanical Engineering) the degree of displacement of the geometric centre of a rotating part from the true centre, esp of the axis of rotation of a wheel or shaft

eccentricity  (ksn-trs-t)
1. A measure of the deviation of an elliptical path, especially an orbit, from a perfect circle. It is equal to the ratio of the distance between the foci of the ellipse to the length of the major axis of the ellipse (the distance between the two points farthest apart on the ellipse). Eccentricity ranges from zero (for a perfect circle) to values approaching 1 (highly elongated ellipses).
2. The ratio of the distance of any point on a conic section from a focus to its distance from the corresponding directrix. This ratio is constant for any particular conic section.
eccentricity

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