From 623ee73d661e5ed8475cb264511f683407d87365 Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Sun, 12 Apr 2020 03:41:30 +0100 Subject: gentoo Easter resync : 12.04.2020 --- sci-mathematics/gfan/metadata.xml | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) (limited to 'sci-mathematics/gfan/metadata.xml') diff --git a/sci-mathematics/gfan/metadata.xml b/sci-mathematics/gfan/metadata.xml index abc08ece6082..c9e1ddd54b35 100644 --- a/sci-mathematics/gfan/metadata.xml +++ b/sci-mathematics/gfan/metadata.xml @@ -6,6 +6,21 @@ Gentoo Mathematics Project - 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. -- cgit v1.2.3