I work at the Department of Information Engineering, University of Brescia, Italy.
15 Do complex numbers really exist? Sep 11 '10
14 Where to start learning Linear Algebra? Sep 11 '10
9 A challenge by R. P. Feynman: give counter-intuitive theorems that can be translated into everyday language Sep 11 '10
6 Alternate definition of prime number Sep 11 '10