Also known as hypertetrahedron
alt=From left to right: a point (marked 0), a line (marked 1), a triangle (marked 2), and a tetrahedron (marked 3).|thumb|The four simplexes that can be fully represented in 3D space.
Wikidata facts
- Image
- Simplex-formation-to-4d.png
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- Commons category
- Simplex
- Schläfli symbol
- {3ⁿ⁻¹}
Sources (3)
via Wikidata · CC0
Article · 中文
几何学上,单纯形或者n-单纯形是和三角形类似的n维几何体。精确的讲,单纯形是某个n维以上的欧几里得空间中的(n+1)个仿射无关(也就是没有m-1维平面包含m+1个点;这样的点集被称为处于一般位置)的点的集合的凸包。 例如,0-单纯形就是点,1-单纯形就是线段,2-单纯形就是三角形,3-单纯形就是四面体,而4-单纯形是一个五胞体(每种情况都包含内部)。 正单纯形是同时也是正多胞形的单纯形。正n-单纯形可以从正(n − 1)-单纯形通过将一个新顶点用同样的边长连接到所有旧顶点构造。
Abstract from DBpedia / Wikipedia · CC BY-SA
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Connections
barycentric coordinate system
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statistics
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dimension
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three-dimensional space
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manifold
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two-dimensional space
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simplex algorithm
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hyperplane
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affine space
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Harold Scott MacDonald Coxeter
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one-dimensional space
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zero-dimensional space
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pentachoron
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Coxeter group
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stellated octahedron
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cross-polytope
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simplicial set
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list of regular polytopes
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Compositional data
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chemistry
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