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

/* code_begins */

{{{
A = matrix([[3,1,-1],[2,2,-3],[-1,1,-2]])
print A

B = vector([3,1,-2])
x= A.solve_right(B)
print x



A * x

x, y, z = var('x, y, z')
solve([3*x + y - z     == 3
       2*x + 2*y - 3*z == 1
        -x +   y - 2*z == -2], x, y, z)
}}}

/* code_ends */

 * '''Solution by''': 
   * <Shambulingayya.n.d>, <R.A>, <IITB>