| adj_hl | Adjoint of an hl-rhotrix |
| char_poly_hl | Characteristic polynomial of a 2-dimensional hl-rhotrix |
| det_hl | Determinant of an hl-rhotrix |
| eigenvalues_hl | Eigenvalues of a 2-dimensional hl-rhotrix |
| eigenvalues_hl_high | Eigenvalues of a high-dimensional hl-rhotrix (per R2 minor) |
| inv_hl | Inverse of an hl-rhotrix |
| make_R2 | Create a 2-dimensional hl-rhotrix |
| make_R4 | Create a 4-dimensional hl-rhotrix |
| make_R6 | Create a 6-dimensional hl-rhotrix |
| plot_rhombus_gg | Rhomboidal layout diagram of an hl-rhotrix |
| print.hl_rhotrix | Print method for hl_rhotrix |
| summary_hl | Summary of an hl-rhotrix with all computed invariants |
| trace_hl | Trace of a 2-dimensional hl-rhotrix |