frustum

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Related to frustum: Frustum of a Pyramid

frustum

frustum of a pyramid

frus·tum

(frŭs′təm)

n. pl. frus·tums or frus·ta (-tə) Mathematics

The part of a solid, such as a cone or pyramid, between two parallel planes cutting the solid, especially the section between the base and a plane parallel to the base.

[Latin frūstum, piece broken off.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

frustum

(ˈfrʌstəm)

n, pl -tums or -ta (-tə)

1. (Mathematics) geometry

a. the part of a solid, such as a cone or pyramid, contained between the base and a plane parallel to the base that intersects the solid

b. the part of such a solid contained between two parallel planes intersecting the solid

2. (Architecture) architect a single drum of a column or a single stone used to construct a pier

[C17: from Latin: piece; probably related to Old English brӯsan to crush, bruise]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

frus•tum

(ˈfrʌs təm)

n., pl. -tums, -ta (-tə).

1. the part of a conical solid left after cutting off a top portion with a plane parallel to the base.

2. the part of a solid, as a cone or pyramid, between two usu. parallel cutting planes.

[1650–60; < Latin: piece, bit]

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Noun

frustum - a truncated cone or pyramid; the part that is left when a cone or pyramid is cut by a plane parallel to the base and the apical part is removed

solid - a three-dimensional shape

truncated pyramid - a frustum formed from a pyramid

truncated cone - a frustum formed from a cone

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References in periodicals archive ?

And, with last month's $70 million acquisition of engineering software provider Frustum Inc., the company is also adding artificial intelligence (AI) capabilities into its Creo 3D CAD portfolio that can guide the discovery of high-performance, next-generation product designs.

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The other expresses segmented taper models assume that the tree bole is divisible into three geometric shapes: a neiloid frustum at the base, a paraboloid frustum in the middle portion, and a cone frustum at the top.

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The structure and forces of supercavitating vehicle are shown in Figure 2, supercavitating vehicle is a rotating body, the head is cavitator, the forepart is a frustum, the middle part is a column, and the tail is a stretching apron-like fin.

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As a result, a lot of geometry is placed outside the viewing frustum (thus outside the screen), because a large quad close to the user cannot normally fit within the complete screen.

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Various methods have been developed to increase the rendering speed of 3D spatial data, including frustum culling, quad-tree/octree, level of detail (LOD) approach, and tile map services.

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(b) The mass [m.sub.i] of each small frustum of cone element was found considering the classical relation of the density using for volume the areas [S.sub.i] and [S.sub.i+1] and the length [l.sub.i].