Infrastructure for Manipulation Polynomial Matrices

Implementation of class "polyMatrix" for storing a matrix of polynomials and implements basic matrix operations; including a determinant and characteristic polynomial. It is based on the package 'polynom' and uses a lot of its methods to implement matrix operations. This package includes 3 methods of triangularization of polynomial matrices: Extended Euclidean algorithm which is most classical but numerically unstable; Sylvester algorithm based on LQ decomposition; Interpolation algorithm is based on LQ decomposition and Newton interpolation. Both methods are described in D. Henrion & M. Sebek, Reliable numerical methods for polynomial matrix triangularization, IEEE Transactions on Automatic Control (Volume 44, Issue 3, Mar 1999, Pages 497-508) and in Salah Labhalla, Henri Lombardi & Roger Marlin, Algorithmes de calcule de la reduction de Hermite d'une matrice a coefficients polynomeaux, Theoretical Computer Science (Volume 161, Issue 1-2, July 1996, Pages 69-92) .


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install.packages("polyMatrix")

0.3.1 by Nikolai Ryzhkov, 5 months ago


https://github.com/namezys/polymatrix


Report a bug at https://github.com/namezys/polymatrix/issues


Browse source code at https://github.com/cran/polyMatrix


Authors: Tamas Prohle [aut] , Peter Prohle [aut] , Nikolai Ryzhkov [aut, cre] , Ildiko Laszlo [aut] , Ulas Onat Alakent [ctb]


Documentation:   PDF Manual  


Task views: Numerical Mathematics


MIT + file LICENSE license


Imports polynom

Depends on stats, MTS

Suggests testthat


See at CRAN