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

/* code_begins */

{{{

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()
}}}

/* code_ends */

 * '''Solution by''': 
   * <Sarvani>, <Student>, <SNIST>