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

/* code_begins */

{{{
var('s')
a=matrix([[s,-4,-4],[-4,s,-4],[-4,-4,s]])
print a
a.det()
solve(a.det(),s)
var('t')
b=matrix([[t,3,0],[3,t,4],[0,4,t]])
print b
b.det()
solve (b.det(),t)
}}}

/* code_ends */

 * '''Solution by''': 
   * <sarada>, <student>, <prakasam>
   * <ananthalakshmi>, <student>, <prakasam>