A=Matrix([[2,1],[1,7]]) 
B=Matrix([[-2,5],[0,8]])
C=Matrix([[6,0,3],[1,0,-5]])
D=Matrix([[4,0,-4],[-3,4,9]])

print "4A-8B = "
print 4*A-8*B
print 
print "4(2B-A) = "
print 4*(2*B-A)
print 
print "8B-4A = "
print 8*B-4*A

SageDays/Kreyszig-6.1--2 (last edited 2010-08-12 10:27:19 by msunyuma)