Libaffa - C++ Affine Arithmetic Library for GNU/Linux

Libaffa is a C++ Affine Arithmetic library for GNU/Linux. Affine Arithmetic is a model proposed by Stolfi and Comba in the early 90's for numerical calculation. Unlike Interval Arithmetic, it keeps track of correlations between computed and input quantities, and is therefore resistant to the explosion error observed in long interval computations.

Olivier Gay, DI-EPFL

David Coeurjolly, LIRIS-CNRS

Nathan J. Hurst
 

Download

http://sv.gnu.org/download/libaffa/libaffa-0.9.6.tar.gz
 

Documentation

libaffa.pdf

You can also find usefull information on affine arithmetic in the Jorge Stofi's webpages.
 

CVS Access

 cvs -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/libaffa login
     (simply press enter when prompted for a password)
 cvs -z3 -d:pserver:anonymous@cvs.savannah.nongnu.org:/sources/libaffa co libaffa

Once you have it checked out, you can update it with cvs update.

You can also browse the CVS Repository: 

http://sv.gnu.org/cgi-bin/viewcvs/libaffa/
 

Changes

• libaffa-0.9.6, June 23, 2006, Olivier Gay
  • Resolves compilation errors with gcc 4
• libaffa-0.9.5, May 28, 2005, Nathan Hurst
  • Non-release, renamed project to libaffa to reduce confusion against aalib.
• libaa-cvs, 20050501, Nathan Hurst
  • Implemented common operations
  • Improved pow(AAF, int) performance
  • Fixed inv() around zero
  • Renamed interval to allow testing against gaol.
• libaa-0.9.5, December, 17th 2004, David Coeurjolly
  • This release fixes compilation problems using recent GNU compiler (gcc >= 3.0)
• libaa-0.9.4, February, 6th 2003, Olivier Gay
  • The first version of the lib provided by Olivier Gay

Licensing

Contact Information