Alpar Juttner <alpar@cs.elte.hu> [Thu, 23 Apr 2009 10:44:35 +0100] rev 604
Fix usage of sqrt() (#268)
Alpar Juttner <alpar@cs.elte.hu> [Tue, 21 Apr 2009 15:18:54 +0100] rev 603
Merge and fix
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 17 Apr 2009 18:14:35 +0200] rev 602
Slightly modify the interface of Circulation and Preflow (#266)
in order to synchronize them to the interface of NetworkSimplex.
Circulation:
- The "delta" notation is replaced by "supply".
- lowerCapMap(), upperCapMap() are renamed to lowerMap() and upperMap().
- Value is renamed to Flow.
Preflow:
- Value is renamed to Flow.
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 17 Apr 2009 18:04:36 +0200] rev 601
Support >= and <= constraints in NetworkSimplex (#219, #234)
By default the same inequality constraints are supported as by
Circulation (the GEQ form), but the LEQ form can also be selected
using the problemType() function.
The documentation of the min. cost flow module is reworked and
extended with important notes and explanations about the different
variants of the problem and about the dual solution and optimality
conditions.
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 03 Apr 2009 18:59:15 +0200] rev 600
Support real types + numerical stability fix in NS (#254)
- Real types are supported by appropriate inicialization.
- A feature of the XTI spanning tree structure is removed to ensure
numerical stability (could cause problems using integer types).
The node potentials are updated always on the lower subtree,
in order to prevent overflow problems.
The former method isn't notably faster during to our tests.
Peter Kovacs <kpeter@inf.elte.hu> [Fri, 03 Apr 2009 13:46:16 +0200] rev 599
Separate types for flow and cost values in NetworkSimplex (#234)
Peter Kovacs <kpeter@inf.elte.hu> [Wed, 25 Mar 2009 21:37:50 +0100] rev 598
Support multiple run() calls in NetworkSimplex (#234)