| 词汇 | ellipse |
| 释义 | ellipse noun[ C ] uk /iˈlɪps/ us /iˈlɪps/ a regular oval shape椭圆（形） Igor Zakowski/iStock/Getty Images Plus/GettyImages Geometrical shapes -cornered circularly congruently conic cuboid cylindrically lozenge orbicular ovally ovoid parallelogram pentagon polytope prism pyramid quadrilateral rectangle rectangular rhombus three-dimensional I may now frame the idea of a mathematical circle, in which all diameters are precisely equal, in express contrast to the series of ellipses, with very unequal diameters, which the floundering hoop has illustrated in its career. The center of an ellipse is within the curve. The course was in the shape of an ellipse, with rather sharp turns at either end, where the contestants, if they did not want a spill, or a bad skid, must slacken their pace. The ellipse and the parabola have no asymptotes. Their ellipses elongate and flatten again to the semblance of circles. ellipse | American Dictionaryellipse noun[ C ] us/ɪˈlɪps/ geometry a curve in the shape of an oval Examples of ellipseellipse The conical points are clearly visible as the intersections of the ellipse and circle in the (1-3)-plane. The first of these shows how the ellipse x2 10y2 = 1 is transformed into a circle, the second in what way a dent disappears. The minimum and maximum ellipse margins are 1.5 and 2.5, respectively. It resembles a breached ellipse rather than a typical sector-collapse horseshoe. When projected onto the target at 458, this cone illuminated an ellipse of 1 1.4 mm and contained $5 1012 photons on target. Here, the orbit was an ellipse with a 3: 1 vertical to horizontal axis ratio. The center-surround field configuration is formed by a photometric cube with a mirrored ellipse on the hypotenuse. The image has been rotated to make the major axis of strain ellipse vertical. Note that a rotation matrix denotes the orientation of an ellipse. The boundary in a plane is an ellipse. The forcing was turned off and the pressure set equal to the harmonic function r2 cos 2 on the boundary of a 2:1 ellipse. In condition 3 they provided word list responses (such as square red ellipse blue launch). Around such a point, we fit an ellipse to the full phase-space density variation at the maximum phase-space gradient. As s 1, the cross becomes an ellipse and corresponding eigenvalues move toward the lower hyperbola. Tests which were done on an ellipse, a rectangle and the unit square, showed a similar behaviour as discussed above. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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