ellipsoid

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ellipsoid

a geometric surface, symmetrical about the three coordinate axes, whose plane sections are ellipses or circles. Standard equation: x2/a2 + y2/b2 + z2/c2 = 1, where ?a, ?b, ?c are the intercepts on the x-, y-, and z- axes

ellipsoid

(i-lip -soid) A surface or solid whose plane sections are circles or ellipses. An ellipse rotated about its major or minor axis is a particular type of ellipsoid, called a prolate spheroid (major axis) or an oblate spheroid (minor axis).

Ellipsoid

 

a closed central quadric surface. An ellipsoid has a center of symmetry O (see Figure 1) and three axes of symmetry, which are called the axes of the ellipsoid. The plane sections of

Figure 1

ellipsoids are ellipses; in particular, one can always find a plane section that is a circle. In a suitable coordinate system the equation of an ellipsoid has the form

ellipsoid

[ə′lip‚sȯid]
(mathematics)
A surface whose intersection with every plane is an ellipse (or circle).
References in periodicals archive ?
Ellipsoidal projections vary the size of the Earth's radius from the semiminor axis to the semimajor axis.
Other versions of LBM have also been employed to study the dynamics of bubbles, mainly in the spherical and ellipsoidal regimes (Frank et al.
The data is in meters above or below the reference ellipsoidal shape of Earth's sea surface.
Esophagus without ventriculus or with globular to ellipsoidal ventriculus without longitudinal sutures; from ventriculus two anteriorly and three posteriorly directed appendices may arise.
The latest model has a three-dimensional grille, redesigned bumpers with integral fog lights and ellipsoidal headlights behind clear glass covers.
It looks smart and classy - a blend of modern styling with enough traditional lines to make it look like a car and not some ellipsoidal bubble as we get from some other manufacturers.
British electricians commonly use a spotlight with an ellipsoidal reflector and call it a profile spot.
In a shear field, the conformation tends to get ellipsoidal and oriented in a direction close to that of the flow field.
In early 2006 geological reconnaissance was conducted over the region of this ellipsoidal 70x50 meters placer pit which is located 3 kilometers due south of the TZ gold resource area, just southeast of the Na[R][bar]oes Unidas airstrip (see attached map).
5 t locksmith even steel substructure and 350 m2 grids; approximately 1 560 m2 to external solar shading systems from ellipsoidal vertical aluminum fins electrically operated incl.
Esheby [4] conducted researches on determination of the elastic field of ellipsoidal inclusion and related problems.
The ReNEW produces over 8,200 lumens of output, making it an LED option that truly exceeds the output of the 575W Source Four ellipsoidal with a clean even field of light.