A = matrix([[1,1,3],[0,4,6],[1,5,8]])
B = matrix([[1,1,3],[0,4,6],[0,0,1]])
det(B)
C = matrix([[1,1,3],[0,4,6],[1,5,9]])
det(C)
A1=A*B
det(A1)
A2=A.transpose()
A3=A2*A
det(A3)
C1 = C.transpose()
det(C1)

Strang-4.2-16-U (last edited 2010-12-18 07:39:32 by 10)