Release 2.13

Release date: April 4th 2014.

• new application ideal with an interface to singular (4.x.x)
• new application fulton for normal toric varieties
• quadratic field extensions and exact representations of Platonic solids (and others)
• new bundled extension for libnormaliz
• new interface to ppl
• additional symmetric convex hull implementations via sympol
• new rule to test regularity of a complete fan
• visualization: saving the view point
• visualization via sketch: new option Scale, can now do VertexLabels and individual colors per vertex or facet
• new formatting_filter for numbered/labeled array types
• fast loading of gzipped XML files
• further modularization via bundled extensions
• enhanced extension management: dependences, credits, reconfiguration
• experimental version of PolyViewer (?)

• partial refactoring in application tropical (to be continued)
• refactoring of heuristic methods in application topaz (e.g., for sphere recognition)
• discontinued support for legacy versions of gcc and perl (gcc 4.2/perl 5.10 or higher needed)
• create_24_cell replaced by regular_24_cell from general Wythoff construction (now comes with the group)
• eliminate_denominators (for type Matrix) renamed to eliminate_denominators_in_rows; reason: avoid confusion with new function eliminate_denominators_entire with same signature; eliminate_denominators for type Vector unchanged
• visualization: Sketch-Output has a different papersize, so you don't need to scroll down anymore