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单词 Horoball
释义

Horoball

英语百科

Horosphere

A horosphere within the Poincaré disk model tangent to the edges of a hexagonal tiling cell of a hexagonal tiling honeycomb
Apollonian sphere packing can be seen as showing horospheres that are tangent to an outer sphere of a Poincaré disk model

In hyperbolic geometry, a horosphere (or parasphere) is a specific hypersurface in hyperbolic n-space. It is the boundary of a horoball, the limit of a sequence of increasing balls sharing (on one side) a tangent hyperplane and its point of tangency. For n = 2 a horosphere is called a horocycle.

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更新时间:2025/6/19 18:04:01