||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

/* code_begins */

{{{
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]])
A_t=A.transpose()
B_t=B.transpose()
C_t=C.transpose()
D_t=D.transpose()


print "6C-5C ="
print 6*C-5*C
print 
print "3C'-2D' = "
print 3*C_t-2*D_t
print 
print "C-2C' doesn't exist because orders don't match"
}}}

/* code_ends */

 * '''Solution by''': 
   * <Sunny mehrotra>, <Student>, <IIT Roorkee>
   * <Sharat S I>, <Student>, <IIT Roorkee>