{"id":13767138,"url":"https://github.com/4ti2/4ti2","last_synced_at":"2026-03-03T21:03:19.508Z","repository":{"id":43059240,"uuid":"140751893","full_name":"4ti2/4ti2","owner":"4ti2","description":"A software package for algebraic, geometric and combinatorial problems on linear spaces. By R. Hemmecke, R. Hemmecke, M. Köppe, P. Malkin, M. Walter","archived":false,"fork":false,"pushed_at":"2025-04-30T18:49:41.000Z","size":7344,"stargazers_count":38,"open_issues_count":27,"forks_count":11,"subscribers_count":7,"default_branch":"master","last_synced_at":"2025-04-30T18:51:31.353Z","etag":null,"topics":["algebraic-statistics","commutative-algebra","integer-programming","lattices","markov-chains","mathematics"],"latest_commit_sha":null,"homepage":"https://4ti2.github.io/","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"gpl-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/4ti2.png","metadata":{"files":{"readme":"README","changelog":"NEWS","contributing":null,"funding":null,"license":"COPYING","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":"AUTHORS","dei":null,"publiccode":null,"codemeta":null}},"created_at":"2018-07-12T18:42:06.000Z","updated_at":"2025-04-07T05:43:20.000Z","dependencies_parsed_at":"2024-08-03T16:05:06.837Z","dependency_job_id":"07c86aac-86a0-4e54-b09e-e1689bea007c","html_url":"https://github.com/4ti2/4ti2","commit_stats":{"total_commits":428,"total_committers":12,"mean_commits":"35.666666666666664","dds":0.4182242990654206,"last_synced_commit":"7c3ce6f1c03e7184b87b70474b7dcfbd55905e59"},"previous_names":[],"tags_count":28,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/4ti2%2F4ti2","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/4ti2%2F4ti2/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/4ti2%2F4ti2/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/4ti2%2F4ti2/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/4ti2","download_url":"https://codeload.github.com/4ti2/4ti2/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":253492529,"owners_count":21916959,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["algebraic-statistics","commutative-algebra","integer-programming","lattices","markov-chains","mathematics"],"created_at":"2024-08-03T16:01:05.229Z","updated_at":"2025-10-21T20:29:31.638Z","avatar_url":"https://github.com/4ti2.png","language":"C++","readme":"4ti2 -- A software package for algebraic, geometric and combinatorial\nproblems on linear spaces.\n\nCopyright (C) 1998, 2002, 2006, 2015 4ti2 team.\n \nThis program is free software; you can redistribute it and/or\nmodify it under the terms of the GNU General Public License\nas published by the Free Software Foundation; either version 2\nof the License, or (at your option) any later version.\n\nThis program is distributed in the hope that it will be useful,\nbut WITHOUT ANY WARRANTY; without even the implied warranty of\nMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\nGNU General Public License for more details.\n\nYou should have received a copy of the GNU General Public License\nalong with this program; if not, write to the Free Software\nFoundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. \n\nCOMPILING 4ti2\n==============\n\nRun the following commands with the 4ti2 directory:\n\n    \t./configure --prefix=INSTALLATION-DIRECTORY\n        make\n        make check\n\tmake install-exec\n\nThe final command will install 4ti2 in a directory tree below the\nINSTALLATION-DIRECTORY that you gave with the first command.  If you\nomit the --prefix option, `make install' will install 4ti2 in the\n/usr/local hierarchy.\n\nYou will need glpk and gmp installed first (see below).\n\nThe first command, 'make', compiles all the executables. The second\ncommand, 'make check', runs a lot of automatic checks. This will take\na while.  If a check fails, then please notify the 4ti2 team.\n\nYou will need gcc version 3.4 or higher.\n\nYou will need an installed version of glpk (linear programming software). See\nthe website http://www.gnu.org/software/glpk for more information. The\nversion 4.7 has been tested. If you do not have glpk installed or 4ti2 cannot\nfind glpk, then the compilation will fail saying that it cannot find the file\n\"glpk.h\".  If you have installed glpk but not in a location that 4ti2 finds by\ndefault, then you will need to invoke \n\n     ./configure --with-glpk=/ROOT/OF/GLPK/INSTALLATION/HIERARCHY\n\nYou will also need an installed version of gmp, The GNU MP\nBignum Library, with c++ support enabled (see http://www.swox.com/gmp/ for more\ndetails).  Versions 4.2.1 and 4.1.4 have been tested. If you are compiling a\nversion of gmp from the source, make sure that you enable c++ support\n(--enable-cxx configure option).  If you have\ninstalled gmp but not in a location that 4ti2 finds by default, then you\nwill need to invoke\n     \n     ./configure --with-gmp=/ROOT/OF/GMP/INSTALLATION/HIERARCHY\n\nIf you have gmp but not with c++ support, then ./configure will\nfail with an error saying that the file \"gmpxx.h\" cannot be found.\n\n\nUSING MACPORTS ON MAC OS X\n==========================\n\nUse the following commands.\n\n     sudo port install gmp glpk\n     ./configure --with-gmp=/opt/local --with-glpk=/opt/local\n     make\n     sudo make install \n\n\nINSTALLATION ON WINDOWS USING CYGWIN\n====================================\n\n1. Install Cygwin from https://www.cygwin.com/\n\n   In the installer, select the following packages:\n\n   Devel: gcc-core gcc-g++ make\n   Math: glpk gmp libglpk-devel libgmp-devel\n\n2. Make sure you unpack the 4ti2 sources into a\n   C:\\DIRECTORY\\WITHOUT\\SPACES\\IN\\IT\n   (for example, C:\\4ti2)\n\n3. Open the Cygwin terminal\n\n4. Type:\n\n      cd /cygdrive/c/DIRECTORY/WITHOUT/SPACES/IN/IT\n      ./configure\n      make\n      make install\n\n5. Now you can run 4ti2's commands from the Cygwin terminal.\n\n\nDOCUMENTATION\n=============\n\nSee the manual or the website http://www.4ti2.de for information on using 4ti2.\n\n","funding_links":[],"categories":["Tools"],"sub_categories":["C++"],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2F4ti2%2F4ti2","html_url":"https://awesome.ecosyste.ms/projects/github.com%2F4ti2%2F4ti2","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2F4ti2%2F4ti2/lists"}