The template for the IH64 system is any rectangle. Only two of the four sides can be shaped as indicated by the half-arrows. The template and any tile shape formed from it have an axis of internal reflection symmetry, as indicated by the dog pattern.
A single tile forms a translation cluster.
A section of the tiling formed by this template is shown below, with a translation cluster outlined. The two basic translations are indicated by the vectors drawn from the highlighted cluster. The tiling has two different axes of mirror reflection symmetry; an example of each is shown. The symmetry group of the tiling is pm.
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