pentahedron


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Related to pentahedron: heptahedron

pentahedron

[‚pen·tə′hē·drən]
(mathematics)
A polyhedron with five faces.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
and by the polynomial space of [[psi].sub.[x.bar]]|T: Finite element Local space [P.sub.T] of [[psi].sub.[x.bar]]|T domain T [??] [F.sub.T] Triangle, Tetrahedron [P.sup.1] ([bar.T]) Rectangle, Hexahedron [Q.sup.1] ([bar.T]) Pentahedron span{1, [bar.x], [bar.y], [bar.z], [bar.xz], [bar.yz]}
Wexford," from Eavan Boland's "Outside History," and from one of his own poems in Pentahedron, he goes on to comment:
As is well known, triclinic ZnMo[O.sub.4] is composed of a series of distorted Mo-O tetrahedrons, Zn-O pentahedrons, and ZnO octahedrons.
The first is based on traditional element properties derived from assumed displacement folds and the second is based on stress elements based on assumed stress fields satisfying the necessary equations of stress equilibrium, enhanced displacement elements based on assumed displacement fields with additional fields vanishing on the element boundaries (the magnitudes of which are determined from the Principle of Minimum Total Potential Energy), and a special hexahedron element constructed from two pentahedrons based on assumed displacement fields.