Can 4-D Figures be Represented on a 3-D Surface?

  • Context: Undergrad 
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Discussion Overview

The discussion explores the possibility of representing four-dimensional figures on three-dimensional surfaces, drawing parallels to how three-dimensional objects can be represented on two-dimensional surfaces. The scope includes conceptual understanding and visualization challenges related to higher dimensions.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions whether it is possible to represent a four-dimensional figure on a three-dimensional surface, drawing a comparison to how three-dimensional figures can be represented on two-dimensional surfaces.
  • Another participant agrees that representation is possible but notes that, similar to two-dimensional representations of three-dimensional objects, only one view can be seen at a time. They emphasize the difficulty in intuitively grasping four-dimensional representations due to human perceptual limitations.
  • A further contribution highlights that just as a cube drawn on a blackboard introduces distortions, a four-dimensional figure represented on a three-dimensional surface will also have distortions, referencing the Necker cube as an example of such visual phenomena.
  • A participant expresses appreciation for the insights shared and acknowledges familiarity with the Necker cube, indicating a personal connection to the discussion.

Areas of Agreement / Disagreement

Participants generally agree that while representation is possible, it comes with significant challenges and limitations. However, the discussion remains open regarding the specifics of how such representations can be effectively visualized and understood.

Contextual Notes

Limitations include the inherent distortions in representing higher-dimensional figures and the reliance on visual perception, which may not fully capture the complexities of four-dimensional objects.

Lewis
If one can draw (or represent) a 3 dimensional figure on a 2 dimensional surface (ie-a cube on a blackboard), is it possible to "draw" (or represent) a 4 dimensional "figure" on a 3 dimensional "surface"?
 
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Yes; however, just as in two-dimensional representations of three-dimensional objects, you can only see one view of the object. Also, because we have no experience with four-dimensional objects and because our eyes are limited to a planar visionscape, it would be much more difficult to intuitively grasp a four-dimensional object's representation than it is that of a three-dimensional one.
 
Thanks a lot for the replies, they both make quite a bit of sense.

robphy- I have seen the animated Necker cube before, but had forgotten about it. Thanks for the link, it's really neat.
 

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