What do you call a parallelepiped that isn't a cube?

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Discussion Overview

The discussion revolves around the terminology for a specific type of parallelepiped that is neither a cube nor a rectangular prism, with a focus on describing an oblique or tilted parallelepiped. Participants explore various naming conventions and definitions related to this geometric shape.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant inquires about the appropriate term for an oblique parallelepiped that is not a cube or rectangle, suggesting "oblique parallelepiped" as a possible descriptor.
  • Another participant proposes the term "prism," but acknowledges that parallelepipeds are a subset of prisms and seeks a more specific term.
  • A later reply suggests using an adjective in front of "parallelepiped," such as "non-rectangular parallelepiped," to clarify the shape being referred to.
  • One participant notes the challenge in defining this shape, comparing it to describing the set of real numbers without including integers, implying that a proper term may not exist due to a lack of necessity for such a distinction.

Areas of Agreement / Disagreement

Participants express differing views on the appropriate terminology, with no consensus reached on a specific term for the oblique parallelepiped. The discussion remains unresolved regarding the best way to describe this geometric shape.

Contextual Notes

There are limitations in the definitions provided, as the discussion does not clarify the exact characteristics that differentiate the oblique parallelepiped from other types, nor does it resolve the need for a specific term.

udtsith
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I was curious what you would call a parallelepiped that isn't a cube and isn't a rectangle and isn't just a rhombohedron? Here is my problem...I need to describe an oblique/tilted parallelepiped but if I just say 'parallelepiped' that would include a cube or rectangle (which I am not referring to). Should I just say oblique parallelepiped? Thank you!
 
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Here's some more definitions to consider:

https://en.wikipedia.org/wiki/Prismatoid

It looks like though you'll have to use some adjective in front of parallelepiped to describe what you mean like perhaps a non-rectangular parallelepiped which excludes square and rectangular faces.

You quest is similar to describing the set of real numbers without integers. There may be no proper term for it as there is no obvious need to define it.
 

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