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ellipse    音标拼音: [ɪl'ɪps]
n. 椭圆形,椭圆,
n. 椭圆

椭圆形,椭圆,椭圆

ellipse
椭图形

ellipse
n 1: a closed plane curve resulting from the intersection of a
circular cone and a plane cutting completely through it;
"the sums of the distances from the foci to any point on an
ellipse is constant" [synonym: {ellipse}, {oval}]

Ellipse \El*lipse"\ ([e^]l*l[i^]ps"), n. [Gr. 'e`lleipsis,
prop., a defect, the inclination of the ellipse to the base
of the cone being in defect when compared with that of the
side to the base: cf. F. ellipse. See {Ellipsis}.]
1. (Geom.) An oval or oblong figure, bounded by a regular
curve, which corresponds to an oblique projection of a
circle, or an oblique section of a cone through its
opposite sides. The greatest diameter of the ellipse is
the major axis, and the least diameter is the minor axis.
See {Conic section}, under {Conic}, and cf. {Focus}.
[1913 Webster]

2. (Gram.) Omission. See {Ellipsis}.
[1913 Webster]

3. The elliptical orbit of a planet.
[1913 Webster]

The Sun flies forward to his brother Sun;
The dark Earth follows wheeled in her ellipse.
--Tennyson.
[1913 Webster]


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  • Ellipse - Wikipedia
    In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of both distances to the two focal points is a constant It generalizes a circle, which is the special type of ellipse in which the two focal points are the same
  • Ellipse - Equation, Formula, Properties, Graphing - Cuemath
    An ellipse is the locus of a point whose sum of distances from two fixed points is a constant Its equation is of the form x^2 a^2 + y^2 b^2 = 1, where 'a' is the length of the semi-major axis and 'b' is the length of the semi-minor axis
  • LegXercise Ellipse, Motorized Automatic Leg Movement, 3 Speeds . . .
    The Ellipse by LegXercise provides motorized Automatic Leg Movement in 3 speeds, forward and backwards A three speed wireless remote control is included The Ellipse will help Loosen Stiff Leg Joints and Activate your Leg Muscles as well as help strengthen and tone your Legs
  • Ellipse | Definition, Properties Equations | Britannica
    Ellipse, a closed curve, the intersection of a right circular cone (see cone) and a plane that is not parallel to the base, the axis, or an element of the cone
  • Equations of Ellipses | College Algebra - Lumen Learning
    An ellipse is the set of all points (x, y) in a plane such that the sum of their distances from two fixed points is a constant Each fixed point is called a focus (plural: foci) of the ellipse
  • Ellipse - Math is Fun
    An ellipse usually looks like a squashed circle: F is a focus, G is a focus, and together they are called foci (pronounced fo-sigh)
  • 8. 1 The Ellipse - College Algebra 2e | OpenStax
    An ellipse is the set of all points (x, y) (x, y) in a plane such that the sum of their distances from two fixed points is a constant Each fixed point is called a focus (plural: foci)
  • Ellipse -- from Wolfram MathWorld
    The ellipse is a conic section and a Lissajous curve An ellipse can be specified in the Wolfram Language using Circle [x, y, a, b] If the endpoints of a segment are moved along two intersecting lines, a fixed point on the segment (or on the line that prolongs it) describes an arc of an ellipse
  • Ellipse - Math. net
    Mathematically, an ellipse is a 2D closed curve where the sum of the distances between any point on it and two fixed points, called the focus points (foci for plural) is the same
  • What Is an Ellipse? Definition, Formula, and Geometric Meaning
    An ellipse is the set of all points in a plane where the sum of the distances to two fixed points (foci) is constant





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