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It includes templates of face elements for construction and helpful hints in building, and also brief descriptions on the theory behind these shapes. It contains the 75 nonprismatic uniform polyhedra , as well as 44 stellated forms of the convex regular and quasiregular polyhedra.
A regular octahedron is an octahedron that is a regular polyhedron. All the faces of a regular octahedron are equilateral triangles of the same size, and exactly four triangles meet at each vertex. A regular octahedron is convex, meaning that for any two points within it, the line segment connecting them lies entirely within it.
The ideal tetrahedron, cube, octahedron, and dodecahedron form respectively the order-6 tetrahedral honeycomb, order-6 cubic honeycomb, order-4 octahedral honeycomb, and order-6 dodecahedral honeycomb; here the order refers to the number of cells meeting at each edge. However, the ideal icosahedron does not tile space in the same way.
English: A diagram showing how an en:octahedron is made into a truncated octahedron (blue) by removing square pyramids from each face (red). Français : Diagramme montrant comment on obtient un tétrakaidécaèdre d'Archimède (ou octaèdre tronqué ) en tronquant les 6 sommets d'un octaèdre régulier à hauteur du tiers de chaque arête.
In Magnus Wenninger's Spherical models, polyhedra are given geodesic notation in the form {3,q+} b,c, where {3,q} is the Schläfli symbol for the regular polyhedron with triangular faces, and q-valence vertices.
OctaDist is computer software for crystallography and inorganic chemistry program. It is mainly used for computing distortion parameters of coordination complex such as spin crossover complex (SCO), magnetic metal complex and metal–organic framework (MOF).
Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... Octahedron {3,4} (3.3.3.3)
Download as PDF; Printable version; In other projects ... the octahedral cupola is a 4-polytope bounded by one octahedron and a parallel rhombicuboctahedron ...