Geometrical Computation and the Linear Blum, Shub and Smale Model Geometrical Computation and the Linear Blum, Shub and Smale Model J´erˆome Durand-Lose Laboratoire d’Informatique Fondamentale d’Orl´eans, Universit´e d’Orl´eans, Orl´eans, France 18-23 June 2007 – Siena, Italy