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

/* code_begins */

{{{
A=matrix([[101,201,301],[102,202,302],[103,203,303]])
a=A.echelon_form()
print a
print a[0,0]*a[1,1]*a[2,2]
t=var('t')
B=matrix([[1,t,t*t],[t,1,t],[t*t,t,1]])
b=B.echelon_form()
print b
print b[0,0]*b[1,1]*b[2,2]
}}}

/* code_ends */

 * '''Solution by''': 
   * Swethakumari G, student,SNIST
   * Radha Bhukya, student, SNIST
   * Usha Rani,student, SNIST