frustum - meaning and definition. What is frustum
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What (who) is frustum - definition

PORTION OF A SOLID THAT LIES BETWEEN TWO PARALLEL PLANES CUTTING IT
Frustrum; Truncated Pyramid; Truncated pyramid; Truncated Square Pyramid; Truncated square pyramid; Truncated cone; Frusta; Flat-topped pyramid; Frustums; Triangular frustum; Pyramidal frustum
  • Conical frustum
  • [[Garsų Gaudyklė]], Neringa, Lithuania
  • 110px
  • [[Rolo]] brand chocolates approximate a right circular conic frustum, although not flat on top.
  • Square frustum
  • A regular [[octahedron]] can be augmented on 3 faces to create a triangular frustum
  • 3D model of a conical frustum.
  • 110px

Frustum         
·noun One of the drums of the shaft of a column.
II. Frustum ·noun The part of a solid next the base, formed by cutting off the, top; or the part of any solid, as of a cone, pyramid, ·etc., between two planes, which may be either parallel or inclined to each other.
frustum         
['fr?st?m]
¦ noun (plural frusta -t? or frustums) Geometry the portion of a cone or pyramid which remains after its upper part has been cut off by a plane parallel to its base, or which is intercepted between two such planes.
Origin
C17: from L., 'piece cut off'.
Frustum         
In geometry, a , a different Latin word cognate to the English word "frustrate".. The confusion between these two words is very old: a warning about them can be found in the Appendix Probi], and the works of [[Plautus include a pun on them..

Wikipedia

Frustum

In geometry, a frustum (Latin for 'morsel'); PL frusta or frustums) is the portion of a solid (normally a pyramid or a cone) that lies between two parallel planes cutting this solid. In the case of a pyramid, the base faces are polygonal, the side faces are trapezoidal. A right frustum is a right pyramid or a right cone truncated perpendicularly to its axis; otherwise, it is an oblique frustum.

If all its edges are forced to become of the same length, then a frustum becomes a prism (possibly oblique or/and with irregular bases).

In computer graphics, the viewing frustum is the three-dimensional region which is visible on the screen. It is formed by a clipped pyramid; in particular, frustum culling is a method of hidden surface determination.

In the aerospace industry, a frustum is the fairing between two stages of a multistage rocket (such as the Saturn V), which is shaped like a truncated cone.