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concept:rotation-symmetryrotation symmetry
Rotation about a point by an angle 360°/n leaving the pattern invariant
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Papers (1)
paper
- Frieze Patterns of the Alhambramentions
Concepts (1)
concept
- Rotational Symmetryrelated_toOne of four key isometries; rotation about a point through a given angle, with n-fold variants based on 360°/n invariance.
Related by similarity (8)
cosine ≥ 0.65 · no typed edgeEntities in the same semantic neighborhood but without a typed relation to this one — candidates for new edges or unrecognized duplicates.
- Rotation by 180° about a center leaving the pattern invariant
- One of four key isometries; reflection across a line (mirror line or axis of reflection).
- Movement in a given direction through a given distance; all frieze patterns possess this symmetry by definition.
- One of Alexander's fifteen properties; appears in birthday table, handshake, and namaste examples
- One of four key isometries; combination of reflection and translation parallel to the mirror line.
- Property where background and foreground tiles have identical shapes; observed in pmg2 patterns at the Alhambra.
- Illustration that a hand's fingers are symmetrical and the wrist is composed of roughly symmetrical parts.