{ "_id": "6a3ac74a5cdecea1d67ebb86", "Package": "expm", "Type": "Package", "Title": "Matrix Exponential, Log, 'etc'", "Version": "1.0-1", "Date": "2024-11-02", "Authors@R": "c(person(\"Martin\", \"Maechler\", role=c(\"aut\",\"cre\"),\nemail=\"maechler@stat.math.ethz.ch\", comment = c(ORCID = \"0000-0002-8685-9910\"))\n, person(\"Christophe\",\"Dutang\", role = \"aut\", comment = c(ORCID = \"0000-0001-6732-1501\"))\n, person(\"Vincent\", \"Goulet\", role = \"aut\", comment = c(ORCID = \"0000-0002-9315-5719\"))\n, person(\"Douglas\", \"Bates\", role = \"ctb\", comment = \"cosmetic clean up, in svn r42\")\n, person(\"David\", \"Firth\", role = \"ctb\", comment = \"expm(method= \\\"PadeO\\\" and \\\"TaylorO\\\")\")\n, person(\"Marina\", \"Shapira\", role = \"ctb\", comment = \"expm(method= \\\"PadeO\\\" and \\\"TaylorO\\\")\")\n, person(\"Michael\", \"Stadelmann\", role = \"ctb\", comment = \"\\\"Higham08*\\\" methods, see ?expm.Higham08...\")\n)", "Contact": "expm-developers@lists.R-forge.R-project.org", "Description": "Computation of the matrix exponential, logarithm, sqrt,\nand related quantities, using traditional and modern methods.", "BuildResaveData": "no", "License": "GPL (>= 2)", "URL": "https://R-Forge.R-project.org/projects/expm/", "BugReports": "https://R-forge.R-project.org/tracker/?atid=472&group_id=107", "Encoding": "UTF-8", "Repository": "https://r-forge.r-universe.dev", "Date/Publication": "2024-11-02 14:45:22 UTC", "RemoteUrl": "https://github.com/r-forge/expm", "RemoteRef": "HEAD", "RemoteSha": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "RemoteSubdir": "pkg", "NeedsCompilation": "yes", "Packaged": { "Date": "2026-06-23 17:44:51 UTC", "User": "root" }, "Author": "Martin Maechler [aut, cre] (ORCID:\n),\nChristophe Dutang [aut] (ORCID:\n),\nVincent Goulet [aut] (ORCID: ),\nDouglas Bates [ctb] (cosmetic clean up, in svn r42),\nDavid Firth [ctb] (expm(method= \"PadeO\" and \"TaylorO\")),\nMarina Shapira [ctb] (expm(method= \"PadeO\" and \"TaylorO\")),\nMichael Stadelmann [ctb] (\"Higham08*\" methods, see ?expm.Higham08...)", "Maintainer": "Martin Maechler ", "MD5sum": "3aa0ea5342a522b436ec0d66bf696fc4", "_user": "r-forge", "_type": "src", "_file": "expm_1.0-1.tar.gz", "_fileid": "cc55e4c2fd594812fec30a4db434cde739ced33d3cd1168f4a80f99277359bd5", "_filesize": 458831, "_sha256": "cc55e4c2fd594812fec30a4db434cde739ced33d3cd1168f4a80f99277359bd5", "_created": "2026-06-23T17:44:51.000Z", "_published": "2026-06-23T17:50:02.748Z", "_distro": "resolute", "_jobs": [ { "job": 83022103382, "time": 159, "config": "linux-devel-arm64", "r": "4.7.0", "check": "ERROR", "artifact": "7828891400" }, { "job": 83022103256, "time": 163, "config": "linux-devel-x86_64", "r": "4.7.0", "check": "ERROR", "artifact": "7828887141" }, { "job": 83022103350, "time": 161, "config": "linux-release-arm64", "r": "4.6.0", "check": "ERROR", "artifact": "7828892502" }, { "job": 83022103301, "time": 158, "config": "linux-release-x86_64", "r": "4.6.0", "check": "ERROR", "artifact": "7828890342" }, { "job": 83022103226, "time": 112, "config": "macos-oldrel-arm64", "r": "4.5.3", "check": "ERROR", "artifact": "7828872698" }, { "job": 83022103194, "time": 272, "config": "macos-oldrel-x86_64", "r": "4.5.3", "check": "ERROR", "artifact": "7828935026" }, { "job": 83022103196, "time": 111, "config": "macos-release-arm64", "r": "4.6.0", "check": "ERROR", "artifact": "7828871742" }, { "job": 83022103191, "time": 178, "config": "macos-release-x86_64", "r": "4.6.0", "check": "ERROR", "artifact": "7828897545" }, { "job": 83021440872, "time": 193, "config": "source", "r": "4.6.0", "check": "OK", "artifact": "7828826195" }, { "job": 83022103166, "time": 241, "config": "wasm-release", "r": "4.6.0", "check": "OK", "artifact": "7828919354" }, { "job": 83022103150, "time": 119, "config": "windows-devel", "r": "4.7.0", "check": "ERROR", "artifact": "7828874683" }, { "job": 83022103232, "time": 102, "config": "windows-oldrel", "r": "4.5.3", "check": "ERROR", "artifact": "7828867867" }, { "job": 83022103190, "time": 109, "config": "windows-release", "r": "4.6.0", "check": "ERROR", "artifact": "7828871052" } ], "_buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603", "_status": "success", "_host": "GitHub-Actions", "_upstream": "https://github.com/r-forge/expm", "_commit": { "id": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "author": "mmaechler (Martin Maechler) ", "committer": "mmaechler (Martin Maechler) ", "message": "fix rare is.null(osVersion)\n\ngit-svn-id: svn://svn.r-forge.r-project.org/svnroot/expm@115 edb9625f-4e0d-4859-8d74-9fd3b1da38cb\n", "time": 1730558722 }, "_maintainer": { "name": "Martin Maechler", "email": "maechler@stat.math.ethz.ch", "login": "mmaechler", "mastodon": "@MMaechler@fosstodon.org", "linkedin": "in/martinmaechlereth", "orcid": "0000-0002-8685-9910", "twitter": "@MMaechler", "description": "Professor emeritus @ SfS, ETH Zurich. \nR (#rstats) Core group member\nFollower of the Alpha and Omega", "uuid": 995722 }, "_registered": true, "_dependencies": [ { "package": "Matrix", "role": "Depends" }, { "package": "methods", "role": "Imports" }, { "package": "RColorBrewer", "role": "Suggests" }, { "package": "sfsmisc", "role": "Suggests" }, { "package": "Rmpfr", "role": "Suggests" } ], "_owner": "r-forge", "_selfowned": true, "_usedby": 453, "_updates": [], "_tags": [], "_stars": 0, "_contributors": [ { "user": "mmaechler", "count": 101, "uuid": 995722 }, { "user": "dutangc", "count": 9, "uuid": 6387382 }, { "user": "vigou3", "count": 3, "uuid": 18180682 }, { "user": "dmbates", "count": 1, "uuid": 371258 }, { "user": "theussl", "count": 1, "uuid": 22165873 } ], "_userbio": { "uuid": 75573726, "type": "organization", "name": " R-Forge", "followers": 27, "description": "git-svn mirrors from R-Forge" }, "_downloads": { "count": 75648, "source": "https://cranlogs.r-pkg.org/downloads/total/last-month/expm" }, "_mentions": 5, "_devurl": "https://github.com/r-forge/expm", "_searchresults": 2200, "_topics": [ "openblas" ], "_rbuild": "4.6.0", "_assets": [ "extra/citation.cff", "extra/citation.html", "extra/citation.json", "extra/citation.txt", "extra/contents.json", "extra/expm.html", "manual.pdf" ], "_homeurl": "https://github.com/r-forge/expm", "_realowner": "r-forge", "_cranurl": true, "_releases": [ { "version": "0.98-1", "date": "2010-07-08" }, { "version": "0.98-2", "date": "2010-07-27" }, { "version": "0.98-3", "date": "2010-08-14" }, { "version": "0.98-4", "date": "2011-03-31" }, { "version": "0.98-5", "date": "2011-08-20" }, { "version": "0.99-0", "date": "2012-09-04" }, { "version": "0.99-1", "date": "2013-12-10" }, { "version": "0.99-1.1", "date": "2014-02-12" }, { "version": "0.999-0", "date": "2015-10-07" }, { "version": "0.999-1", "date": "2017-02-02" }, { "version": "0.999-2", "date": "2017-03-29" }, { "version": "0.999-3", "date": "2018-09-22" }, { "version": "0.999-4", "date": "2019-03-21" }, { "version": "0.999-5", "date": "2020-07-20" }, { "version": "0.999-6", "date": "2021-01-13" }, { "version": "0.999-7", "date": "2023-01-09" }, { "version": "0.999-8", "date": "2023-11-29" }, { "version": "0.999-9", "date": "2024-01-11" }, { "version": "1.0-0", "date": "2024-08-19" } ], "_exports": [ ".methComplex", ".methSparse", "%^%", "balance", "dgebal", "expAtv", "expm", "expm.Higham08", "expmCond", "expmFrechet", "logm", "sqrtm" ], "_datasets": [ { "name": "matStig", "title": "Stig's \"infamous\" Example Matrix", "object": "matStig", "file": "matStig.R", "class": [ "matrix", "array" ], "fields": {}, "rows": 8, "table": true, "tojson": true } ], "_help": [ { "page": "balance", "title": "Balance a Square Matrix via LAPACK's DGEBAL", "topics": [ "balance", "dgebal" ] }, { "page": "expAtv", "title": "Compute Matrix Exponential exp(A t) * v directly", "topics": [ "expAtv", "expmv" ] }, { "page": "expm", "title": "Matrix Exponential", "topics": [ ".methComplex", ".methSparse", "expm", "mexp" ] }, { "page": "expm.Higham08", "title": "Matrix Exponential [Higham 2008]", "topics": [ "expm.Higham08" ] }, { "page": "expmCond", "title": "Exponential Condition Number of a Matrix", "topics": [ "expmCond" ] }, { "page": "expmFrechet", "title": "Frechet Derivative of the Matrix Exponential", "topics": [ "expmFrechet" ] }, { "page": "logm", "title": "Matrix Logarithm", "topics": [ "logm" ] }, { "page": "matpow", "title": "Matrix Power", "topics": [ "%^%", "matpow" ] }, { "page": "matStig", "title": "Stig's \"infamous\" Example Matrix", "topics": [ "matStig" ] }, { "page": "sqrtm", "title": "Matrix Square Root", "topics": [ "sqrtm" ] } ], "_rundeps": [ "lattice", "Matrix" ], "_sysdeps": [ { "shlib": "liblapack", "package": "libopenblas0-pthread", "source": "openblas", "version": "0.3.32+ds-5", "name": "openblas", "homepage": "https://www.openblas.net/", "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)" }, { "shlib": "libblas", "package": "libopenblas0-pthread", "source": "openblas", "version": "0.3.32+ds-5", "name": "openblas", "homepage": "https://www.openblas.net/", "description": "Optimized BLAS (linear algebra) library (shared lib, pthread)" } ], "_vignettes": [ { "source": "expm.Rnw", "filename": "expm.pdf", "title": "Using expm in packages", "engine": "utils::Sweave", "headings": [], "created": "2013-07-04 15:15:32", "modified": "2013-07-04 15:15:32", "commits": 1 } ], "_score": 11.655469583747806, "_indexed": true, "_nocasepkg": "expm", "_universes": [ "r-forge", "mmaechler" ], "_binaries": [ { "r": "4.7.0", "os": "linux", "version": "1.0-1", "date": "2026-06-23T17:47:29.000Z", "distro": "resolute", "arch": "aarch64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "9d8e792594400b724f34486bba282bf41dec9d0cb813ab375b4f90e643238708", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.7.0", "os": "linux", "version": "1.0-1", "date": "2026-06-23T17:47:09.000Z", "distro": "resolute", "arch": "x86_64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "d540eee6c15fa0882bff15709e2a1037d66184cb2ceda85502ab85e5f25d08e8", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.6.0", "os": "linux", "version": "1.0-1", "date": "2026-06-23T17:47:31.000Z", "distro": "resolute", "arch": "aarch64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "3c93083e1a03aa48177e13c063aecb11b9d70d2e25725029872a8e0ef427274e", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.6.0", "os": "linux", "version": "1.0-1", "date": "2026-06-23T17:47:18.000Z", "distro": "resolute", "arch": "x86_64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "01039a7b120de263961cab3e90c58dbe255d80b2e14646d0df39268b73662792", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.5.3", "os": "mac", "version": "1.0-1", "date": "2026-06-23T17:46:40.000Z", "arch": "aarch64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "ede29f45ed1cf4ddfeb4407146a07a2b5ea58a6510b3958831053fb642cb7cf5", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.5.3", "os": "mac", "version": "1.0-1", "date": "2026-06-23T17:48:27.000Z", "arch": "x86_64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "573745f155c4d4faa0cc27317a116a848545293621a012714a2fe78eeab42a06", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.6.0", "os": "mac", "version": "1.0-1", "date": "2026-06-23T17:46:35.000Z", "arch": "aarch64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "0116b333ce06b22c40b02978a7ce90e2d2add950ff204fa8dc9ae5697ab78996", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.6.0", "os": "mac", "version": "1.0-1", "date": "2026-06-23T17:47:21.000Z", "arch": "x86_64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "26ee2e89604be91c50575ff8d03db55905fa922627d0888733e44338261c9524", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.6.0", "os": "wasm", "version": "1.0-1", "date": "2026-06-23T17:49:05.000Z", "arch": "emscripten", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "3c70c2b211f521292970437f34c03503fba8c96a46222321ceef2f98269b3753", "status": "success", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.7.0", "os": "win", "version": "1.0-1", "date": "2026-06-23T17:46:10.000Z", "arch": "x86_64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "eb4dfe55d5d18d9850bd9a313a882247c7078a4b71524d515ce26b47e4085a95", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.5.3", "os": "win", "version": "1.0-1", "date": "2026-06-23T17:46:01.000Z", "arch": "x86_64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "8393fa98327e3b396643f39e25a3b50f09c38ebc84f7c7086ad4f5b8d4db375f", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" }, { "r": "4.6.0", "os": "win", "version": "1.0-1", "date": "2026-06-23T17:46:17.000Z", "arch": "x86_64", "commit": "d1ba35f23f3faed2413f5ae32f51ff229109f9ee", "fileid": "7c806c64ef954046c79a90a73b848f27020e51ba3853684252a470e020e91d81", "status": "failure", "check": "ERROR", "buildurl": "https://github.com/r-universe/r-forge/actions/runs/28045196603" } ] }