B=matrix([[2,3,4,5],[4,5,7,8],[8,3,5,9],[2,10,9,4]])
print B
B.det()
2*B.det()
-1*B.det()
(B**2).det()
C=B.inverse()
print C.det()

Strang-4.2 2-U (last edited 2010-12-17 12:39:59 by 172)