The NonA package is dedicated to the effective study of the algebraic parameter estimation problem, introduced by M. Fliess and H. Sira-Ramirez (see the reference below) and studied in the Non-A team.

1. M. Fliess, and H. Sira-Ramírez, An algebraic framework for linear identification, ESAIM Control Optim. Calc. Variat., 9 (2003), 151-168.
2. A. Quadrat, Towards an effective study of the algebraic parameter estimation problem, hal-01415300, to appear in the proceedings of IFAC 2017 Workshop Congress , Toulouse (France), 09-14/07/2017.