A=matrix([[2,3,1],[1,-2,1],[-1,0,-2]])
B = A.with_rescaled_row(0, 3)
B.add_multiple_of_row(1,0,-1)
r=A.det()
e=B.det()
print r
print e

Strang-4.4-4.2-U (last edited 2010-12-18 12:06:02 by 10)