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(a) A square torus representation of the line (φ1, π/4, π/2) in Euler space; the f.c.c. α fiber is highlighted in orange and the two segments of the β fiber in red. (b) In inverted contrast, all cubic symmetry operators are applied, as well as the (q, −q) double-cover property, for the α and β fibers. See text for additional explanation.
