sci-mathematics / gfan

Compute Groebner fans and tropical varieties

Official package sites : https://users-math.au.dk/~jensen/software/gfan/gfan.html ·

Gfan is a software package for computing Gröbner fans and tropical varieties. These are polyhedral fans associated to polynomial ideals. The maximal cones of a Gröbner fan are in bijection with the marked reduced Gröbner bases of its defining ideal. The software computes all marked reduced Gröbner bases of an ideal. Their union is a universal Gröbner basis. The tropical variety of a polynomial ideal is a certain subcomplex of the Gröbner fan. Gfan contains algorithms for computing this complex for general ideals and specialized algorithms for tropical curves, tropical hypersurfaces and tropical varieties of prime ideals. In addition to the above core functions the package contains many tools which are useful in the study of Gröbner bases, initial ideals and tropical geometry. The full list of commands can be found in Appendix B of the manual. For ordinary Gröbner basis computations Gfan is not competitive in speed compared to programs such as CoCoA, Singular and Macaulay2.

v0.6.2 :: 0 :: gentoo

Modified
License
GPL-2+
Keywords
amd64 x86 ~amd64-linux ~arm ~x86-linux
USE flags
doc

General

doc
Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally

dev-libs / gmp : Library for arbitrary-precision arithmetic on different type of numbers

sci-libs / cddlib : C library implementing the Double Description Method

dev-libs / gmp : Library for arbitrary-precision arithmetic on different type of numbers

sci-libs / cddlib : C library implementing the Double Description Method

717112
sci-mathematics/gfan fails to compile
Repository mirror & CI · gentoo
Merge updates from master
Michael Orlitzky · gentoo
sci-mathematics/gfan: disable test that hangs on x86.
The "0602ResultantFanProjection" test hangs on x86, leading to a build failure. Disabling this test looks as simple as deleting it from the source tree, which the ebuild now does in src_prepare(). Bug: https://bugs.gentoo.org/717112 Package-Manager: Portage-2.3.89, Repoman-2.3.20 Signed-off-by: Michael Orlitzky <mjo@gentoo.org>
Repository mirror & CI · gentoo
Merge updates from master
Michael Orlitzky · gentoo
sci-mathematics/gfan: remove old "unused" version and patches.
Package-Manager: Portage-2.3.89, Repoman-2.3.20 Signed-off-by: Michael Orlitzky <mjo@gentoo.org>
Repository mirror & CI · gentoo
Merge updates from master
Agostino Sarubbo · gentoo
sci-mathematics/gfan: x86 stable wrt bug #716362
Package-Manager: Portage-2.3.89, Repoman-2.3.20 RepoMan-Options: --include-arches="x86" Signed-off-by: Agostino Sarubbo <ago@gentoo.org>
Repository mirror & CI · gentoo
Merge updates from master
Agostino Sarubbo · gentoo
sci-mathematics/gfan: amd64 stable wrt bug #716362
Package-Manager: Portage-2.3.89, Repoman-2.3.20 RepoMan-Options: --include-arches="amd64" Signed-off-by: Agostino Sarubbo <ago@gentoo.org>
Repository mirror & CI · gentoo
Merge updates from master
Michael Orlitzky · gentoo
sci-mathematics/gfan: new version 0.6.2.
Update our version of gfan to the latest upstream v0.6.2, from September 28th 2017. The new ebuild is based off of the version that François Bissey maintains in the sage-on-gentoo overlay, with a few additional changes: * Merged the EAPI=7 and slot dependency updates from ::gentoo. * Change the LICENSE to "GPL-2+", to match the upstream LICENSE file. * Stripped some more CFLAGS mangling out of the upstream Makefile. Corresponding to this we now replace "-O3" by "-O2" in the ebuild. * Added USE="doc", to build and install the LaTeX manual. Closes: https://bugs.gentoo.org/711492 Package-Manager: Portage-2.3.84, Repoman-2.3.20 Signed-off-by: Michael Orlitzky <mjo@gentoo.org>
Repository mirror & CI · gentoo
Merge updates from master
David Seifert · gentoo
sci-mathematics/gfan: Fix building against GCC 9
Closes: https://bugs.gentoo.org/686484 Package-Manager: Portage-2.3.67, Repoman-2.3.15 Signed-off-by: David Seifert <soap@gentoo.org>
David Seifert · gentoo
sci-mathematics/gfan: Port to EAPI 7
Package-Manager: Portage-2.3.67, Repoman-2.3.15 Signed-off-by: David Seifert <soap@gentoo.org>
Robin H. Johnson · gentoo
Drop $Id$ per council decision in bug #611234.
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Gerhard Bräunlich · gentoo
sci-mathematics/gfan: Remove EAPI 3 ebuild
Package-Manager: portage-2.3.3 Closes: https://github.com/gentoo/gentoo/pull/4031
T. Malfatti · gentoo
media-libs/portaudio: Version bump
Agostino Sarubbo · gentoo
sci-mathematics/gfan: x86 stable wrt bug #588426
Package-Manager: portage-2.3.0 RepoMan-Options: --include-arches="x86" Signed-off-by: Agostino Sarubbo <ago@gentoo.org>
Agostino Sarubbo · gentoo
sci-mathematics/gfan: amd64 stable wrt bug #588426
Package-Manager: portage-2.2.28 RepoMan-Options: --include-arches="amd64" Signed-off-by: Agostino Sarubbo <ago@gentoo.org>
Thomas Kahle · gentoo
sci-mathematics/gfan: gcc-6.1 compat and EAPI=6
Package-Manager: portage-2.3.0_rc1
Markus Meier · gentoo
sci-mathematics/gfan: add ~arm, bug #573324
Package-Manager: portage-2.2.27 RepoMan-Options: --include-arches="arm"
Robin H. Johnson · gentoo
proj/gentoo: Initial commit
This commit represents a new era for Gentoo: Storing the gentoo-x86 tree in Git, as converted from CVS. This commit is the start of the NEW history. Any historical data is intended to be grafted onto this point. Creation process: 1. Take final CVS checkout snapshot 2. Remove ALL ChangeLog* files 3. Transform all Manifests to thin 4. Remove empty Manifests 5. Convert all stale $Header$/$Id$ CVS keywords to non-expanded Git $Id$ 5.1. Do not touch files with -kb/-ko keyword flags. Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> X-Thanks: Alec Warner <antarus@gentoo.org> - did the GSoC 2006 migration tests X-Thanks: Robin H. Johnson <robbat2@gentoo.org> - infra guy, herding this project X-Thanks: Nguyen Thai Ngoc Duy <pclouds@gentoo.org> - Former Gentoo developer, wrote Git features for the migration X-Thanks: Brian Harring <ferringb@gentoo.org> - wrote much python to improve cvs2svn X-Thanks: Rich Freeman <rich0@gentoo.org> - validation scripts X-Thanks: Patrick Lauer <patrick@gentoo.org> - Gentoo dev, running new 2014 work in migration X-Thanks: Michał Górny <mgorny@gentoo.org> - scripts, QA, nagging X-Thanks: All of other Gentoo developers - many ideas and lots of paint on the bikeshed