hyperboloid

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hyperboloid

[hī′pər·bə‚lȯid]
(mathematics)
A quadric surface given by an equation of the form (x 2/ a 2) ± (y 2/ b 2) - (z 2/ c 2) = 1; in certain cases it is a hyperboloid of revolution, which can be realized by rotating the pieces of a hyperbola about an appropriate axis.
References in periodicals archive ?
The quadric surface we discuss in this paper will be an ellipsoid, an elliptic paraboloid, a hyperboloid of two sheets or a cone; however, we will leave it to reader to explore the case when quadric surface is a cone.
4) The reduction in thickness is possible through the use of hyperboloid surfaces, which means that the lens is flatter, which reduces the lens sag, which in turn reduces lens thickness (see the first article of this series, OT August 17, 2012).
The current point of the spatial curve placed on the hyperboloid is A([x.
The integra-Mate hyperboloid wire cage contact design offers a low mating force, high cycle life, and resistance to shock and vibration.
H] which cross the ABCDA'BC'D slab provide single-sheeted hyperboloids we obtain the results found in (Luo et al.
a ball in case A * a rotations-symmetric ellipsoid in case B * a straight circular cone in case C * a rotation-symmetric hyperboloid bounded by the surfaces (([x.
QA Technology announces the expansion of the integraMate[R] hyperboloid contact and connector product family with the addition of 1.
Mound shape generally diverged from a standard ellipsoid, more closely resembling an oblique cone or hyperboloid (Fig.
The base of the caryatids vessel, hyperboloid in shape, symbolizes the subterranean world.
Tensile fabric structures brought to the fore the anticlastic shapes of sections of the hyperboloid of revolution.
The subreflector is a machined aluminum hyperboloid or ellipsoid which is rigidly supported by special plastic cylinder.
The occurrence and hyperboloid shape of the sleep shell is universal; on the other hand, the absolute position of the shell in the [sigma][phi][omega] space as well as the distribution of sleep stages within the shell show a considerable interindividual variance.

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