* Gfan_version_0.6 (June 19th 2017, improved mixed volume computation,
improved Gröbner basis implementation, new tropical starting cone
algorithm, resultant fan algorithms, tropical hypersurface reconstruction
algorithm, tropical basis detection (in _tropicalintersection -t was
replaced by --tropicalbasistest), stable intersection of tropical cycles
(_fancommonrefinement --stable), better implementation of the field of
rational functions). Updated June 20th with right version numbering.
* Gfan_version_0.5 (January 23th 2011, major update, Gröbner bases/fans over
the integers (experimental), p-adic Gröbner bases/complexes
(experimental), fan homology computations, exporting of fans in Polymake's
new xml format, performance improvements (gfan is now faster than TOPCOM
for (most) secondary fan computations) and much more.) Updated January
25th 2011 (xml format and installation instructions).
* Gfan_version_0.4plus (October 20 2009, same as version 0.4, but with three
bugs fixed. Update to this version if you are working with tropical
multiplicities)
* Gfan_version_0.4 (May 31 2009, major update, performance improvements for
polyhedral computations, possibility to link to the SoPlex LP library,
computation of secondary fans, links, toric ideals, lattice ideals, and
tropical Weil-divisors, symmetry is now exploitable for tropical
hypersurface intersections)
* Gfan_version_0.3 (October 12 2007, major update, some programs have
changed behaviour, a new Polymake compatible format for polyhedral fans
and polyhedral cones is supported, free choice of variable names)
* Gfan_version_0.2.2 (July 24 2006, changes in installation script, bug
fixes for non-homogeneous ideals in and xfig output, GPL license)
* Gfan_version_0.2.1 (February 5 2006, support for Z/pZ as coefficient field
added)
* Gfan_version_0.2 (October 12 2005)
* Gfan_version_0.1 (April 8 2005)
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