Download: Sollya 4.1 (released on November 26, 2013).
Documentation: Mailing-list: For questions regarding how to use Sollya, feature requests, etc. Subscribe here.

What is Sollya?

Sollya is both a tool environment and a library for safe floating-point code development. It is particularily targeted to the automatized implementation of mathematical floating-point libraries (libm). Amongst other features, it offers a certified infinity (supremum) norm and a fast Remez algorithm.

Sollya is developed by PEQUAN and APICS. It is written by Christoph Lauter, Sylvain Chevillard, M. Joldeș and N. Jourdan. The Inria project-teams Arénaire and Caramel contributed to previous versions of Sollya.

Sollya provides you with: In order to build Sollya, you will need: a C compiler (e.g., gcc), a C++ compiler (e.g., g++), GMP, MPFR, MPFI, FPLLL, and libxml2.
Gnuplot is highly recommended for using the plot and externalplot commands. It is not required though.

History: the list of all versions of Sollya is available here.

Weekly build

A snapshot of the Sollya git repository is usually taken every Sunday. It is as easy to install as a stable release!
Download: weekly release (dated from 05/22/2016).

How to cite Sollya?

Currently, the proper way to cite Sollya in a scientific publication is:
Sollya: an environment for the development of numerical codes.
S. Chevillard, M. Joldeș and C. Lauter.
In Mathematical Software - ICMS 2010, pages 28-31, Heidelberg, Germany, September 2010. Springer.


Who uses Sollya?

We are aware of the following projects using Sollya. If you use Sollya and you wish to be added to this list, please contact us.


The Sollya tool and the material of this website is Copyright © 2006-2013 by
Laboratoire de l'Informatique du Parallélisme - UMR CNRS - ENS Lyon - UCB Lyon 1 - INRIA 5668, Lyon, France,
LORIA (CNRS, INPL, INRIA, UHP, U-Nancy 2) Nancy, France,
Laboratoire d'Informatique de Paris 6, Équipe PEQUAN, UPMC Université Paris 06 - CNRS - UMR 7606 - LIP6, Paris, France,
and by INRIA Sophia-Antipolis Méditerranée, APICS Team, Sophia-Antipolis, France.
All rights reserved. The Sollya tool is open software. It is distributed and can be used, modified and redistributed under the terms of the CeCILL-C license available at and reproduced in the COPYING file of the distribution. The distribution contains parts of other libraries as a support for but not integral part of Sollya. These libraries are reigned by the GNU Lesser General Public License that is available at and reproduced in the COPYING file of the distribution. This software, the Sollya tool, is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Last update: 07/10/2014