| 11. | Initially Langdon s ambigrams followed the yin / yang model, featuring rotational symmetry.
|
| 12. | They have instead a discrete rotational symmetry, often fivefold, like a regular pentagon.
|
| 13. | A typical cryptic crossword grid is generally 15?5, with half-turn rotational symmetry.
|
| 14. | Eudicots with tetramerous or pentamerous petals may have rotational symmetry of order 4 or 5.
|
| 15. | Thus, for example, wallpaper and crystals cannot have 8-fold rotational symmetry.
|
| 16. | The resulting figure has rotational symmetry only.
|
| 17. | The event-symmetry can then be extended to a larger N dimensional rotational symmetry.
|
| 18. | In this case, there is spontaneous symmetry breaking of the rotational symmetry of the Hamiltonian.
|
| 19. | Rotational symmetry is symmetry with respect to some or all rotations in-dimensional Euclidean space.
|
| 20. | Monocots are identifiable by their trimerous petals, thus monocots often have rotational symmetry of order 3.
|
