#include #include int main() { using namespace blitz; TinyMatrix A, B, C; A = 1, 2, 3, 4, 5, 6, 7, 8, 9; B = 1, 0, 0, 0, 1, 0, 0, 0, 1; C = product(A, B); std::cout << C << std::endl; }