Algebraic Operations and Visualisation for Hl-Rhotrices R package hlrhotrix version 0.1.0 Provides constructors for hl-rhotrices of dimension 2, 4 and 6, together with computation of the determinant, adjoint, inverse and eigenvalues under the Robust Multiplication Method (RMM). A 'ggplot2'-based function visualises the rhomboidal layout and the decomposition into principal minors. Software Depends: R (>= 4.0.0) Imports: ggplot2, ggforce, patchwork Suggests: knitr, rmarkdown Fabio M. Correa <fmcron@protonmail.com> Comprehensive R Archive Network (CRAN) Fabio M. Correa [aut, cre] (ORCID: <https://orcid.org/0000-0002-6708-9316>), Abednego O. Isere [aut], Joseph O. Braimah [aut] GPL (>= 2) 2026-04-21 application/tgz https://CRAN.R-project.org/package=hlrhotrix doi:10.32614/CRAN.package.hlrhotrix