var('a,b,c,d,e,f,g,h')
A=matrix([[a,b],[b,c]])
B=matrix([[e,f],[g,h]])

A
B
V=A*B
print V
V.eigenvalues()
R=B*A
print R
R.eigenvalues()
#the matrices are similar since the eigen values are same!!

Strang-5.6-1-U (last edited 2010-12-17 05:35:29 by 172)