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A rich hierarchy of matrix classes, including triangular, symmetric, and diagonal matrices, both dense and sparse and with pattern, logical and numeric entries. Numerous methods for and operations on these matrices, using 'LAPACK' and 'SuiteSparse' libraries.
Package details 


Author  Douglas Bates [aut], Martin Maechler [aut, cre] (<https://orcid.org/0000000286859910>), Timothy A. Davis [ctb] (SuiteSparse and 'cs' C libraries, notably CHOLMOD, AMD; collaborators listed in dir(pattern = '^[AZ]+[.]txt$', full.names=TRUE, system.file('doc', 'SuiteSparse', package='Matrix'))), Jens OehlschlĂ¤gel [ctb] (initial nearPD()), Jason Riedy [ctb] (condest() and onenormest() for octave, Copyright: Regents of the University of California), R Core Team [ctb] (base R matrix implementation) 
Maintainer  Martin Maechler <mmaechler+Matrix@gmail.com> 
License  GPL (>= 2)  file LICENCE 
Version  1.34 
URL  http://Matrix.Rforge.Rproject.org/ 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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