a = var('a')
b=var('b')
c=var('c')
d=var('d')
A = matrix([[a,b],[c,d]])
D = matrix ([[2,0],[0,5]])
print A*D
print " columns of AD are multiplied by 2 and 5 respeectively"
print ""
print D*A
print " rows of DA are multpilied by 2 and 5 respectively "

Strang-1.7-1.21-U (last edited 2010-12-18 06:30:20 by ch.sandeep)