ellipse
椭圆,椭圆形,椭圆体,椭圆度
Related Words
Definitions
- 1
Geometry.
- : a plane curve such that the sums of the distances of each point in its periphery from two fixed points, the foci, are equal. It is a conic section formed by the intersection of a right circular cone by a plane that cuts the axis and the surface of the cone. Typical equation: + = 1. If a = b the ellipse is a circle.
Synonyms & Antonyms
Examples
NASA’s 1970s Viking Mars missions had an estimated landing ellipse of 280x100km.
That spread, Rothermel found, drove outward in a thin, expanding edge along an ellipse.
That something, according to new simulations from Nesvorny, is most likely a Neptune that slipped outward on an orbit with a just-so shape—one that falls somewhere between a perfect circle and a more severely squashed ellipse.
The eccentricity of an ellipse is a measure of how stretched out it is.
Similarly, imagine you are presented with an actual ellipse, with the other object being an ellipse-shaped tilted coin.
A hole, though shaped like an ellipse, in which this well-hung stud had placed it would look as if a compass traced it.
On Dec. 18, a triumphant Johnson appeared on the Ellipse outside the White House to light the national Christmas tree.
In an orbit made elliptical by the planetary attraction the sun necessarily occupies one of the foci of the ellipse.
The longer axis of the ellipse is itself in constant motion in the direction in which the earth travels.
The form is an ellipse with axes of 620 and 513 feet, the building covering nearly six acres of ground.
The disk was an impossibly long ellipse now, surrounded by a vast array of smaller bodies, fragments and contents of the ship.
An ellipse is a figure bounded by a continuous curve, whose nature will be shown presently.