| 21. | Thus 5-fold rotational symmetry cannot be eliminated by an argument missing either of those assumptions.
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| 22. | Professional physicists say that they are irreducible representations ( irreps for short ) of the rotational symmetry.
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| 23. | Multipole expansions are related to the underlying rotational symmetry of the physical laws and their associated differential equations.
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| 24. | It too looks the same, no matter how one rotates it, so it has rotational symmetry.
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| 25. | Rotational symmetry greatly simplifies the analysis of optical systems, which otherwise must be analyzed in three dimensions.
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| 26. | Because of the lost of rotational symmetry coefficients responsible for this type of mixing always introduce direction dependence.
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| 27. | The rotational symmetry group was described by S . L . van Oss ( 1899 ); see References.
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| 28. | Geometrically, the graph of an odd function has rotational symmetry with respect to the degrees about the origin.
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| 29. | Asymmetry requires at least 5 triangles . 3-fold rotational symmetry without mirror symmetry requires at least 7 triangles.
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| 30. | The center image shows a similar-looking depiction of the L10a140 link ( but without true rotational symmetry ).
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