C=matrix([[6,0,3],[1,0,-5]])
D=matrix([[4,0,-4],[-3,4,9]])
6*C-5*C
3*C.transpose()+2*D.transpose()
C-2*C.transpose()

Kreyszig-6.1-4-U (last edited 2010-12-18 10:31:28 by sarvani.kotha)