For the rigid model, there is no motion so the rotation matrix is simply the identity matrix

R = . |
(16.2) |

Rigid frame order matrix

The frame order matrix is

Daeg^{(n)} = R^{⊗n}, |
(16.3) |

where surface normalisation factor is 1.

The 1 degree frame order matrix with tensor rank-2 is the identity matrix

The 2 degree frame order matrix with tensor rank-4 is the identity matrix

The relax user manual (PDF), created 2020-08-26.