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
10 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