[Home]Tesseract

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Changed: 1c1,4
A tesseract, or hypercube, is the four dimensional object. In a square, each vertex has two perpendicular edges incident to it, while a cube has three. A hypercube has four. So, canonical coordinates for the vertices of a tesseract centered at the origin are (±1, ±1, ±1, ±1), while the interior of the same consists of all points (x0, x1, x2, x3) with -1 < xi < 1.
A tesseract, or hypercube, is a four-dimensional analogue of a cube.
In a square, each vertex has two perpendicular edges incident to it, while a cube has three.
A hypercube has four.
So, canonical coordinates for the vertices of a tesseract centered at the origin are (±1, ±1, ±1, ±1), while the interior of the same consists of all points (x0, x1, x2, x3) with -1 < xi < 1.

Changed: 3c6,11
A tesseract is bound by eight hyperplanes, each of which intersects it to form a cube. Two cubes and so three squares intersect at each edge. There are three cubes meeting at every vertex, the vertex polyhedron of which is a regular tetrahedron. Thus the tesseract is given Schläfi notation {4,3,3}. All in all, it consists of 8 cubes, 24 squares, 32 edges, and 16 vertices. The square, cube, and tesseracts are all examples of measure polytopes in their respective dimensions.
A tesseract is bound by eight hyperplanes, each of which intersects it to form a cube.
Two cubes, and so three squares, intersect at each edge.
There are three cubes meeting at every vertex, the vertex polyhedron of which is a regular tetrahedron.
Thus the tesseract is given Schläfi notation {4,3,3}.
All in all, it consists of 8 cubes, 24 squares, 32 edges, and 16 vertices.
The square, cube, and tesseracts are all examples of measure polytopes in their respective dimensions.

Changed: 5c13,14
See also [1] for an illustration.
External link:
*http://pweb.netcom.com/~hjsmith/WireFrame4/tesseract.html has an illustration (requires Java).

Changed: 7c16,17
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A tesseract, or hypercube, is a four-dimensional analogue of a cube. In a square, each vertex has two perpendicular edges incident to it, while a cube has three. A hypercube has four. So, canonical coordinates for the vertices of a tesseract centered at the origin are (±1, ±1, ±1, ±1), while the interior of the same consists of all points (x0, x1, x2, x3) with -1 < xi < 1.

A tesseract is bound by eight hyperplanes, each of which intersects it to form a cube. Two cubes, and so three squares, intersect at each edge. There are three cubes meeting at every vertex, the vertex polyhedron of which is a regular tetrahedron. Thus the tesseract is given Schläfi notation {4,3,3}. All in all, it consists of 8 cubes, 24 squares, 32 edges, and 16 vertices. The square, cube, and tesseracts are all examples of measure polytopes in their respective dimensions.

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Last edited November 18, 2001 6:07 pm by Zundark (diff)
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