#Kreyszig 309 Problemset6.1 problem 4
A = matrix(QQ,[[2,1],[1,7]])
B= matrix(QQ,[[-2,5],[0,8]])
C= matrix(QQ,[[6,0,3],[1,0,-5]])
D= matrix(QQ, [[4,0,-4],[-3,4,9]])
print 6*C-5*C
print 3*transpose(C)+2*transpose(D)
#C-2*transpose(C)
print "Undefined since order of C is not equal to order of C^t"