Examples of using Polyhedron in English and their translations into Finnish
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It's located in the Polyhedron Fortress.
A geometric solid with all flat surfaces is called a polyhedron.
A cuboctahedron is a polyhedron with 8 triangular faces and 6 square faces.
Tag Archives: arbitrary polyhedron.
In many works semiregular polyhedron is used as a synonym for Archimedean solid.
Any geometric solid with at least one curved surface is not a polyhedron.
It is the Goldberg polyhedron GPV(1,1) or{5+, 3}1,1, containing pentagonal and hexagonal faces.
Thoughts on“ Fast volume computing algorithm of arbitrary polyhedron in 3D space”.
Computing of the volume of polyhedron in 3D space isn't a trivial problem, but the following trivial method exists.
Just as there are polygons and non-polygons,there are also polyhedrons and non-polyhedrons.
If a polyhedron is self-dual, then the compound of the polyhedron with its dual will comprise congruent polyhedra. .
Dorman Luke's construction can only be used where a polyhedron has such an intersphere and the vertex figure is cyclic.
There are some non-orientable polyhedra that have double covers satisfying the definition of a uniform polyhedron. .
Every geometric polyhedron corresponds to an abstract polyhedron in this way, and has an abstract dual polyhedron. .
The algorithm that you have already described is post factum"classic" algorithm of calculating the volume of a polyhedron, which is true only for a single object polyhedron. .
However, it is possible to reciprocate a polyhedron about any sphere, and the resulting form of the dual will depend on the size and position of the sphere; as the sphere is varied, so too is the dual form.
The cuboctahedron is the unique convex polyhedron in which the long radius(center to vertex) is the same as the edge length; thus its long diameter(vertex to opposite vertex) is 2 edge lengths.
A geometrically self-dual polyhedron is not only topologically self-dual, but its polar reciprocal about a certain point, typically its centroid, is a similar figure.
More generally, for any polyhedron whose faces form a closed surface, the vertices and edges of the polyhedron form a graph embedded on this surface, and the vertices andedges of the(abstract) dual polyhedron form the dual graph.
There are several polyhedra with doubled faces produced by Wythoff's construction.
Many polyhedra are repeated from different construction sources and are colored differently.
The spherical tilings including the set of hosohedrons anddihedrons which are degenerate polyhedra.
They are usually not counted as uniform polyhedra.
Presents a more elaborate mathematical model than the earlier one, though the polyhedra are still there.
Some polyhedra have faces that are hidden, in the sense that no points of their interior can be seen from the outside.
Peter Cromwell(1997) writes in a footnote to Page 149 that,"in current terminology,'semiregular polyhedra' refers to the Archimedean and Catalan(Archimedean dual) solids.
If the polyhedra are mutually disjoint what you call classic volume calculation is still valid, and will be much faster than the method proposed here.
Stevin gave an interesting account in this work of constructions related to polygons and polyhedra, using the concept of similarity, and a study of regular and semi-regular polyhedra.
Convex polyhedra interested him and are studied in several of his papers which combine his geometric and graph theory interests.
In 1993, Zvi Har'El produced a complete kaleidoscopic construction of the uniform polyhedra andduals with a computer program called Kaleido, and summarized in a paper Uniform Solution for Uniform Polyhedra.