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
