[gentoo-commits] repo/gentoo:master commit in: sci-mathematics/gfan/

["Michael Orlitzky" <mjo@gentoo.org>]

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>