{ "_id": "6a103972acfb0bcc41c9ae34", "Package": "polyMatrix", "Version": "0.9.11", "Title": "Infrastructure for Manipulation Polynomial Matrices", "Description": "Implementation of class \"polyMatrix\" for storing a matrix\nof polynomials and implements basic matrix operations;\nincluding a determinant and characteristic polynomial. It is\nbased on the package 'polynom' and uses a lot of its methods to\nimplement matrix operations. This package includes 3 methods of\ntriangularization of polynomial matrices: Extended Euclidean\nalgorithm which is most classical but numerically unstable;\nSylvester algorithm based on LQ decomposition; Interpolation\nalgorithm is based on LQ decomposition and Newton\ninterpolation. Both methods are described in D. Henrion & M.\nSebek, Reliable numerical methods for polynomial matrix\ntriangularization, IEEE Transactions on Automatic Control\n(Volume 44, Issue 3, Mar 1999, Pages 497-508)\n and in Salah Labhalla, Henri Lombardi &\nRoger Marlin, Algorithmes de calcule de la reduction de Hermite\nd'une matrice a coefficients polynomeaux, Theoretical Computer\nScience (Volume 161, Issue 1-2, July 1996, Pages 69-92)\n.", "Type": "Package", "Authors@R": "c(\nperson(\"Tamas\", \"Prohle\", email=\"prohlet@ludens.elte.hu\", role=\"aut\"),\nperson(\"Peter\", \"Prohle\", email=\"prohlep@math.elte.hu\", role=\"aut\"),\nperson(\"Nikolai\", \"Ryzhkov\", email=\"namezys@gmail.com\", role=c(\"aut\", \"cre\")),\nperson(\"Ildiko\", \"Laszlo\", role=\"aut\", comment = c(ORCID = \"0000-0003-2324-8183\")),\nperson(\"Ulas Onat\", \"Alakent\", role=\"ctb\")\n)", "License": "MIT + file LICENSE", "URL": "https://github.com/namezys/polymatrix", "BugReports": "https://github.com/namezys/polymatrix/issues", "Roxygen": "list(markdown = TRUE)", "RoxygenNote": "7.1.1", "Repository": "https://namezys.r-universe.dev", "Date/Publication": "2021-07-11 21:42:44 UTC", "RemoteUrl": "https://github.com/namezys/polymatrix", "RemoteRef": "HEAD", "RemoteSha": "abdde4801218d043e6999a571c32542fae873983", "NeedsCompilation": "no", "Packaged": { "Date": "2026-05-12 05:30:05 UTC", "User": "root" }, "Author": "Tamas Prohle [aut],\nPeter Prohle [aut],\nNikolai Ryzhkov [aut, cre],\nIldiko Laszlo [aut] (ORCID: ),\nUlas Onat Alakent [ctb]", "Maintainer": "Nikolai Ryzhkov ", "MD5sum": "0deaa4bd1f5dd48ed0267861f959eb21", "_user": "namezys", "_type": "src", "_file": "polyMatrix_0.9.11.tar.gz", "_fileid": "c1f55d41e1954f5435fdca3bc81ddcae04fe23192060d19a3cc904e638ae284a", "_filesize": 189843, "_sha256": "c1f55d41e1954f5435fdca3bc81ddcae04fe23192060d19a3cc904e638ae284a", "_created": "2026-05-12T05:30:05.000Z", "_published": "2026-05-22T11:09:38.425Z", "_distro": "noble", "_jobs": [ { "job": 77367805191, "time": 104, "config": 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"GCD", "GCD,polyMatrix-method" ] }, { "page": "inv", "title": "Inverse polynomial matrix", "topics": [ "inv" ] }, { "page": "is.polyMatrix", "title": "Check if object is polyMatrix", "topics": [ "is.polyMatrix" ] }, { "page": "is.proper", "title": "Proper polynomial matrices", "topics": [ "is.column.proper", "is.proper", "is.row.proper" ] }, { "page": "is.zero", "title": "Test if something is zero", "topics": [ "is.zero", "is.zero,polyMatrix-method", "is.zero,polynomial-method" ] }, { "page": "LCM", "title": "LCM for polynomial matrices", "topics": [ "LCM", "LCM,polyMatrix-method" ] }, { "page": "matrix.degree", "title": "Degree of each item of matrix", "topics": [ "matrix.degree", "matrix.degree,matrix-method", "matrix.degree,polyMatrix-method", "matrix.degree,polynomial-method" ] }, { "page": "minor", "title": "Minor of matrix item", "topics": [ "minor" ] }, { "page": "newton", "title": "Build matrix of polynimal decomposition using Newton interpolation in Newton bais: (x-x_0), (x - x_0) * (x x_1)", "topics": [ "newton" ] }, { "page": "parse.polyMatrix", "title": "Parse polynomial matrix from strings", "topics": [ "parse.polyMatrix" ] }, { "page": "parse.polynomial", "title": "Parse polynomial from string", "topics": [ "parse.polynomial" ] }, { "page": "polyMatrix", "title": "Create polyMatrix object", "topics": [ "polyMatrix" ] }, { "page": "polyMatrix-class", "title": "A class to represent matrix of polinomials", "topics": [ "!=,ANY,polyMatrix-method", "!=,polyMatrix,ANY-method", "%*%,matrix,polyMatrix-method", "%*%,polyMatrix,matrix-method", "%*%,polyMatrix,polyMatrix-method", "*,ANY,polyMatrix-method", "*,polyMatrix,numeric-method", "*,polyMatrix,polyMatrix-method", "*,polyMatrix,polynomial-method", "+,ANY,polyMatrix-method", "+,polyMatrix,matrix-method", "+,polyMatrix,missing-method", "+,polyMatrix,numeric-method", "+,polyMatrix,polyMatrix-method", "+,polyMatrix,polynomial-method", "-,ANY,polyMatrix-method", "-,polyMatrix,ANY-method", 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M", "topics": [ "zero_lead_rows" ] }, { "page": "zero.round", "title": "Rounds object to zero if it's too small", "topics": [ "zero.round", "zero.round,polyMatrix-method", "zero.round,polynomial-method" ] } ], "_readme": "https://github.com/namezys/polymatrix/raw/HEAD/README.md", "_rundeps": [ "lattice", "Matrix", "polynom" ], "_score": 3, "_indexed": true, "_nocasepkg": "polymatrix", "_universes": [ "namezys" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "0.9.11", "date": "2026-05-12T05:31:47.000Z", "distro": "noble", "commit": "abdde4801218d043e6999a571c32542fae873983", "fileid": "aab54e2242fe7bc86531428efd335cdbbe4214e584cc32e7879109e6af9dbce3", "status": "success", "check": "WARNING", "buildurl": "https://github.com/r-universe/namezys/actions/runs/25715311975" }, { "r": "4.6.0", "os": "linux", "version": "0.9.11", "date": "2026-05-12T05:32:20.000Z", "distro": "noble", "commit": "abdde4801218d043e6999a571c32542fae873983", "fileid": 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