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单词 Glide reflection
释义

Glide reflection

英语百科

Glide reflection

Example of a glide reflection: A composite of a reflection across a line and a translation parallel to the line of reflection

In 2-dimensional geometry, a glide reflection (or transflection) is a type of opposite isometry of the Euclidean plane: the combination of a reflection in a line and a translation along that line.

A single glide is represented as frieze group p11g. A glide reflection can be seen as a limiting rotoreflection, where the rotation becomes a translation. It can also be given a Schoenflies notation as S2∞, Coxeter notation as [∞,2], and orbifold notation as ∞×.

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