OpenMEEG: A C++ package for low-frequency bio-electromagnetism solving forward problems in the field of EEG and MEG. The OpenMEEG software is developed within the Athena project-team at INRIA Sophia-ntipolis. It was initiated in 2006 by the Odyssee Project Team (INRIA/ENPC/ENS Ulm). OpenMEEG solves forward problems related to Magneto- and Electro-encephalography (MEG and EEG). The forward problem uses the symmetric Boundary Element Method (symmetric BEM), providing excellent accuracy (see Publications on OpenMEEG).