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Figure 13
Generation of the torus knots (5,q). The fivefold axis is normal to the page and a twofold axis is along the x direction (red arrow). The points are generated by the fivefold rotation matrix R and the twofold rotation matrix S. Numbers in blue are the number of steps made by the blue arrows; q is half the sum of those numbers.

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ISSN: 2053-2733
Volume 76| Part 5| September 2020| Pages 611-621
https://doi.org/10.1107/S2053273320010669
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