||'''Book'''|| Linear Algebra ||
 ||'''Author'''|| Gilbert Strang ||
 ||'''Edition'''||  ||

/* code_begins */
A=matrix([[101,201,301],[102,202,302],[103,203,303]])
A.add_multiple_of_row(1,0,-1)
A.add_multiple_of_row(2,0,-1)
A.add_multiple_of_row(2,1,-2)
A.det()
t=var('t')
B=matrix([[1,t,t^2],[t,1,t],[t^2,t,1]])
B.add_multiple_of_row(2,1,-t)
B.add_multiple_of_row(1,0,-t)
B.det()
{{{

}}}

/* code_ends */

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