commit: f2f461b73ee564076c4c71d16754364677de0e55 Author: Michael Orlitzky <mjo <AT> gentoo <DOT> org> AuthorDate: Fri Mar 6 16:56:00 2020 +0000 Commit: Michael Orlitzky <mjo <AT> gentoo <DOT> org> CommitDate: Fri Mar 6 16:56:00 2020 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f2f461b7
sci-mathematics/gfan: improve the long description in metadata.xml. Package-Manager: Portage-2.3.84, Repoman-2.3.20 Signed-off-by: Michael Orlitzky <mjo <AT> gentoo.org> sci-mathematics/gfan/metadata.xml | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/sci-mathematics/gfan/metadata.xml b/sci-mathematics/gfan/metadata.xml index abc08ece608..c9e1ddd54b3 100644 --- a/sci-mathematics/gfan/metadata.xml +++ b/sci-mathematics/gfan/metadata.xml @@ -6,6 +6,21 @@ <name>Gentoo Mathematics Project</name> </maintainer> <longdescription lang="en"> - gfan is a computer algebra tool to compute Groebner fans and tropical varieties. + 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. </longdescription> </pkgmetadata>
