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The rhombus and square are disallowed from touching another of itself, while the hexagon can connect to both tiles as well as itself, but only in alternate edges. There are 3 Socolar tiles: a 30° rhombus, square, and a regular hexagon with tiling rules defined by the fins.
When more than one type of rhombus is allowed, additional tilings are possible, including some that are topologically equivalent to the rhombille tiling but with lower symmetry. Tilings combinatorially equivalent to the rhombille tiling can also be realized by parallelograms, and interpreted as axonometric projections of three dimensional cubic ...
There is only one uniform coloring in a rhombitrihexagonal tiling. (Naming the colors by indices around a vertex (3.4.6.4): 1232.) With edge-colorings there is a half symmetry form (3*3) orbifold notation.
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The Ammann–Beenker tilings are closely related to the silver ratio (+) and the Pell numbers.. the substitution scheme ; introduces the ratio as a scaling factor: its matrix is the Pell substitution matrix, and the series of words produced by the substitution have the property that the number of s and s are equal to successive Pell numbers.
A cube is a special case of a trigonal trapezohedron, since a square is a special case of a rhombus.. A gyroelongated triangular bipyramid constructed with equilateral triangles can also be seen as a trigonal trapezohedron when its coplanar triangles are merged into rhombi.
In geometry, the rhombicuboctahedron is an Archimedean solid with 26 faces, consisting of 8 equilateral triangles and 18 squares. It was named by Johannes Kepler in his 1618 Harmonices Mundi, being short for truncated cuboctahedral rhombus, with cuboctahedral rhombus being his name for a rhombic dodecahedron.
The American Foursquare or "Prairie Box" was a post-Victorian style, which shared many features with the Prairie architecture pioneered by Frank Lloyd Wright.. During the early 1900s and 1910s, Wright even designed his own variations on the Foursquare, including the Robert M. Lamp House, "A Fireproof House for $5000", and several two-story models for American System-Built Homes.