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Figure 16
The square lattice in blue is transformed into the lattice in red after a rotation [\alpha = 2\arctan(1/3) ] = 36.8699° (dashed lines) and (left) a dilatation [\zeta = 1/2] with coincidence unit cell: [A = (12,9),B = (-3,4)]; (right) a shear [\eta = 1/2] with coincidence unit cell: [A = (4,3),B = (-6,8)].

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ISSN: 2053-2733
Volume 79| Part 4| July 2023| Pages 301-317
https://doi.org/10.1107/S2053273323003662
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