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List of planar symmetry groups : ウィキペディア英語版 | List of planar symmetry groups This article summarizes the classes of discrete symmetry groups of the Euclidean plane. The symmetry groups are named here by three naming schemes: International notation, orbifold notation, and Coxeter notation. There are three kinds of symmetry groups of the plane: *2 rosette groups – 2D point groups *7 frieze groups – 2D line groups *17 wallpaper groups – 2D space groups. == Rosette groups == There are two families of discrete two-dimensional point groups, and they are specified with parameter ''n'', which is the order of the group of the rotations in the group.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「List of planar symmetry groups」の詳細全文を読む
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