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

/* code_begins */

{{{
range=(a!=-4&a>2),(b>4)
var('a')
b=matrix([[a,2,2],[2,a,2],[2,2,a]])
print b
b.det()
solve(b.det(),a)
var('b')
d=matrix([[1,2,4],[2,b,8],[4,8,7]])
print d
d.det()
solve(d.det(),b)
}}}

/* code_ends */

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