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Four-dimensional space - Wikipedia
Four-dimensional space (4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible abstraction of the observation that one needs only three numbers, called dimensions, to describe the sizes or locations of objects in the everyday world. For example, … 展开
In the familiar three-dimensional space of daily life, there are three coordinate axes—usually labeled x, y, and z—with each axis orthogonal (i.e. perpendicular) to the other two. The six cardinal … 展开
Research using virtual reality finds that humans, despite living in a three-dimensional world, can, without special practice, make spatial judgments about line segments embedded … 展开
In art
In literature
Science fiction texts often mention the concept of "dimension" when referring to parallel or alternate universes 展开To understand the nature of four-dimensional space, a device called dimensional analogy is commonly employed. Dimensional analogy is the study of how (n − 1) … 展开
CC-BY-SA 许可证中的维基百科文本 n-sphere - Wikipedia
Interactive 4D Handbook - 4D Spheres - Bailey Snyder
The HyperSphere - Massachusetts Institute of …
Learn about the hypersphere, a four dimensional object that has properties both similar to and different from the ordinary sphere. See how to project and visualize shapes on the hypersphere, such as the dodecahedron, using stereographic …
A 4-Dimensional Sphere, Animated - Foundalis
INTERACTIVE 4D HANDBOOK - Bailey Snyder
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